55595904 has 256 divisors, whose sum is σ = 191009280. Its totient is φ = 13934592.

The previous prime is 55595893. The next prime is 55595909. The reversal of 55595904 is 40959555.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55595909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1292907 + ... + 1292949.

It is an arithmetic number, because the mean of its divisors is an integer number (746130).

Almost surely, 2^55595904 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 55595904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95504640).

55595904 is an abundant number, since it is smaller than the sum of its proper divisors (135413376).

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

55595904 is a wasteful number, since it uses less digits than its factorization.

55595904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 42.

The square root of 55595904 is about 7456.2660896725. The cubic root of 55595904 is about 381.6637667084.

The spelling of 55595904 in words is "fifty-five million, five hundred ninety-five thousand, nine hundred four".