55472926464 has 432 divisors, whose sum is σ = 174956850432. Its totient is φ = 17495875584.

The previous prime is 55472926459. The next prime is 55472926469. The reversal of 55472926464 is 46462927455.

55472926464 is a `hidden beast` number, since 5 + 547 + 2 + 92 + 6 + 4 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (55472926459) and next prime (55472926469).

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (14515200) is a multiple of the sum of its prime divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 55472926464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55472926469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196017267 + ... + 196017549.

Almost surely, 2^55472926464 is an apocalyptic number.

55472926464 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55472926464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87478425216).

55472926464 is an abundant number, since it is smaller than the sum of its proper divisors (119483923968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55472926464 is a wasteful number, since it uses less digits than its factorization.

55472926464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 448 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

Subtracting from 55472926464 its reverse (46462927455), we obtain a palindrome (9009999009).

The spelling of 55472926464 in words is "fifty-five billion, four hundred seventy-two million, nine hundred twenty-six thousand, four hundred sixty-four".