56602590 has 96 divisors (see below), whose sum is σ = 154441728. Its totient is φ = 13252800.

The previous prime is 56602583. The next prime is 56602603. The reversal of 56602590 is 9520665.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112279 + ... + 112781.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 2^56602590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56602590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77220864).

56602590 is an abundant number, since it is smaller than the sum of its proper divisors (97839138).

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

56602590 is a wasteful number, since it uses less digits than its factorization.

56602590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56602590 is about 7523.4692795279. The cubic root of 56602590 is about 383.9536212433.

The spelling of 56602590 in words is "fifty-six million, six hundred two thousand, five hundred ninety".