56663590 has 16 divisors (see below), whose sum is σ = 102799872. Its totient is φ = 22486464.

The previous prime is 56663587. The next prime is 56663591. The reversal of 56663590 is 9536665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56663591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21039 + ... + 23578.

It is an arithmetic number, because the mean of its divisors is an integer number (6424992).

Almost surely, 2^56663590 is an apocalyptic number.

56663590 is a deficient number, since it is larger than the sum of its proper divisors (46136282).

56663590 is a wasteful number, since it uses less digits than its factorization.

56663590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44751.

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 56663590 is about 7527.5221686821. The cubic root of 56663590 is about 384.0914992824.

The spelling of 56663590 in words is "fifty-six million, six hundred sixty-three thousand, five hundred ninety".