56663442 has 32 divisors (see below), whose sum is σ = 137367360. Its totient is φ = 17170560.

The previous prime is 56663437. The next prime is 56663447. The reversal of 56663442 is 24436665.

It is an interprime number because it is at equal distance from previous prime (56663437) and next prime (56663447).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56663397 and 56663406.

It is not an unprimeable number, because it can be changed into a prime (56663447) 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, 47103 + ... + 48290.

It is an arithmetic number, because the mean of its divisors is an integer number (4292730).

Almost surely, 2^56663442 is an apocalyptic number.

56663442 is an abundant number, since it is smaller than the sum of its proper divisors (80703918).

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

56663442 is a wasteful number, since it uses less digits than its factorization.

56663442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95415 (or 95409 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 56663442 is about 7527.5123380835. The cubic root of 56663442 is about 384.0911648784.

The spelling of 56663442 in words is "fifty-six million, six hundred sixty-three thousand, four hundred forty-two".