56456404 has 6 divisors (see below), whose sum is σ = 98798714. Its totient is φ = 28228200.

The previous prime is 56456399. The next prime is 56456423. The reversal of 56456404 is 40465465.

It can be written as a sum of positive squares in only one way, i.e., 56280004 + 176400 = 7502^2 + 420^2 .

It is a super-2 number, since 2×56456404² = 6374651105222432, 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 56456404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7057047 + ... + 7057054.

Almost surely, 2^56456404 is an apocalyptic number.

It is an amenable number.

56456404 is a deficient number, since it is larger than the sum of its proper divisors (42342310).

56456404 is a wasteful number, since it uses less digits than its factorization.

56456404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14114105 (or 14114103 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 56456404 is about 7513.7476667772. The cubic root of 56456404 is about 383.6227940133.

It can be divided in two parts, 5645640 and 4, that multiplied together give a triangular number (22582560 = T₆₇₂₀).

The spelling of 56456404 in words is "fifty-six million, four hundred fifty-six thousand, four hundred four".