56861942 has 4 divisors (see below), whose sum is σ = 85292916. Its totient is φ = 28430970.

The previous prime is 56861929. The next prime is 56861947. The reversal of 56861942 is 24916865.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×56861942² = 6466560896022728, 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 56861942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56861947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14215484 + ... + 14215487.

It is an arithmetic number, because the mean of its divisors is an integer number (21323229).

Almost surely, 2^56861942 is an apocalyptic number.

56861942 is a deficient number, since it is larger than the sum of its proper divisors (28430974).

56861942 is a wasteful number, since it uses less digits than its factorization.

56861942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28430973.

The product of its digits is 103680, while the sum is 41.

The square root of 56861942 is about 7540.6857778321. The cubic root of 56861942 is about 384.5391506077.

The spelling of 56861942 in words is "fifty-six million, eight hundred sixty-one thousand, nine hundred forty-two".