55392885 has 96 divisors (see below), whose sum is σ = 110972160. Its totient is φ = 25380864.

The previous prime is 55392881. The next prime is 55392889. The reversal of 55392885 is 58829355.

55392885 is a `hidden beast` number, since 553 + 92 + 8 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (55392881) and next prime (55392889).

It is not a de Polignac number, because 55392885 - 2² = 55392881 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55392885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55392881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 537744 + ... + 537846.

It is an arithmetic number, because the mean of its divisors is an integer number (1155960).

Almost surely, 2^55392885 is an apocalyptic number.

It is an amenable number.

55392885 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

55392885 is a wasteful number, since it uses less digits than its factorization.

55392885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 184 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 55392885 is about 7442.6396527039. The cubic root of 55392885 is about 381.1986274953.

The spelling of 55392885 in words is "fifty-five million, three hundred ninety-two thousand, eight hundred eighty-five".