55373472 has 216 divisors, whose sum is σ = 198682848. Its totient is φ = 14319360.

The previous prime is 55373453. The next prime is 55373491. The reversal of 55373472 is 27437355.

55373472 is a `hidden beast` number, since 553 + 7 + 34 + 72 = 666.

55373472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55373453) and next prime (55373491).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 243823 + ... + 244049.

It is an arithmetic number, because the mean of its divisors is an integer number (919828).

Almost surely, 2^55373472 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 55373472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99341424).

55373472 is an abundant number, since it is smaller than the sum of its proper divisors (143309376).

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

55373472 is a wasteful number, since it uses less digits than its factorization.

55373472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 250 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 55373472 is about 7441.3353640325. The cubic root of 55373472 is about 381.1540906466.

It can be divided in two parts, 5537 and 3472, that added together give a palindrome (9009).

The spelling of 55373472 in words is "fifty-five million, three hundred seventy-three thousand, four hundred seventy-two".