55992570 has 64 divisors (see below), whose sum is σ = 138360960. Its totient is φ = 14496768.

The previous prime is 55992569. The next prime is 55992583. The reversal of 55992570 is 7529955.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178734 + ... + 179046.

It is an arithmetic number, because the mean of its divisors is an integer number (2161890).

Almost surely, 2^55992570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55992570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69180480).

55992570 is an abundant number, since it is smaller than the sum of its proper divisors (82368390).

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

55992570 is a wasteful number, since it uses less digits than its factorization.

55992570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 141750, while the sum is 42.

The square root of 55992570 is about 7482.8183193233. The cubic root of 55992570 is about 382.5693154743.

The spelling of 55992570 in words is "fifty-five million, nine hundred ninety-two thousand, five hundred seventy".