56401624 has 16 divisors (see below), whose sum is σ = 105886800. Its totient is φ = 28165152.

The previous prime is 56401603. The next prime is 56401651. The reversal of 56401624 is 42610465.

It is a super-2 number, since 2×56401624² = 6362286379674752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56401592 and 56401601.

It is a congruent number.

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, 2997 + ... + 11035.

It is an arithmetic number, because the mean of its divisors is an integer number (6617925).

Almost surely, 2^56401624 is an apocalyptic number.

It is an amenable number.

56401624 is a deficient number, since it is larger than the sum of its proper divisors (49485176).

56401624 is a wasteful number, since it uses less digits than its factorization.

56401624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922 (or 8918 counting only the distinct ones).

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

The square root of 56401624 is about 7510.1014640283. The cubic root of 56401624 is about 383.4986766663.

The spelling of 56401624 in words is "fifty-six million, four hundred one thousand, six hundred twenty-four".