56400615 has 12 divisors (see below), whose sum is σ = 97761144. Its totient is φ = 30080304.

The previous prime is 56400601. The next prime is 56400689. The reversal of 56400615 is 51600465.

It is a happy number.

56400615 is a `hidden beast` number, since 5 + 6 + 40 + 0 + 615 = 666.

It is not a de Polignac number, because 56400615 - 2⁹ = 56400103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626629 + ... + 626718.

It is an arithmetic number, because the mean of its divisors is an integer number (8146762).

Almost surely, 2^56400615 is an apocalyptic number.

56400615 is a deficient number, since it is larger than the sum of its proper divisors (41360529).

56400615 is a wasteful number, since it uses less digits than its factorization.

56400615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253358 (or 1253355 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56400615 is about 7510.0342875382. The cubic root of 56400615 is about 383.4963897790.

The spelling of 56400615 in words is "fifty-six million, four hundred thousand, six hundred fifteen".