55232628480 has 432 divisors, whose sum is σ = 196906810464. Its totient is φ = 14285537280.

The previous prime is 55232628449. The next prime is 55232628481. The reversal of 55232628480 is 8482623255.

55232628480 is a `hidden beast` number, since 5 + 523 + 26 + 28 + 4 + 80 = 666.

It is a super-2 number, since 2×55232628480² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55232628481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159171667 + ... + 159172013.

It is an arithmetic number, because the mean of its divisors is an integer number (455802802).

Almost surely, 2^55232628480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55232628480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98453405232).

55232628480 is an abundant number, since it is smaller than the sum of its proper divisors (141674181984).

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

55232628480 is a wasteful number, since it uses less digits than its factorization.

55232628480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 55232628480 in words is "fifty-five billion, two hundred thirty-two million, six hundred twenty-eight thousand, four hundred eighty".