56401642 has 8 divisors (see below), whose sum is σ = 92293632. Its totient is φ = 25637100.

The previous prime is 56401603. The next prime is 56401651. The reversal of 56401642 is 24610465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56401642² = 6362290440592328, 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 56401642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281834 + ... + 1281877.

It is an arithmetic number, because the mean of its divisors is an integer number (11536704).

Almost surely, 2^56401642 is an apocalyptic number.

56401642 is a deficient number, since it is larger than the sum of its proper divisors (35891990).

56401642 is a wasteful number, since it uses less digits than its factorization.

56401642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563724.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 56401642 is about 7510.1026624141. The cubic root of 56401642 is about 383.4987174628.

The spelling of 56401642 in words is "fifty-six million, four hundred one thousand, six hundred forty-two".