56606638 has 32 divisors (see below), whose sum is σ = 94711680. Its totient is φ = 25160160.

The previous prime is 56606629. The next prime is 56606639. The reversal of 56606638 is 83660665.

It is a super-2 number, since 2×56606638² = 6408622931326088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56606638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56606639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327120 + ... + 327292.

It is an arithmetic number, because the mean of its divisors is an integer number (2959740).

Almost surely, 2^56606638 is an apocalyptic number.

56606638 is a deficient number, since it is larger than the sum of its proper divisors (38105042).

56606638 is a wasteful number, since it uses less digits than its factorization.

56606638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 56606638 is about 7523.7382995423. The cubic root of 56606638 is about 383.9627739883.

The spelling of 56606638 in words is "fifty-six million, six hundred six thousand, six hundred thirty-eight".