56215275 has 24 divisors (see below), whose sum is σ = 93160704. Its totient is φ = 29911200.

The previous prime is 56215241. The next prime is 56215279. The reversal of 56215275 is 57251265.

It is not a de Polignac number, because 56215275 - 2¹⁵ = 56182507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56215279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54010 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (3881696).

Almost surely, 2^56215275 is an apocalyptic number.

56215275 is a deficient number, since it is larger than the sum of its proper divisors (36945429).

56215275 is a wasteful number, since it uses less digits than its factorization.

56215275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771 (or 1766 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 56215275 is about 7497.6846426080. The cubic root of 56215275 is about 383.0758552407.

The spelling of 56215275 in words is "fifty-six million, two hundred fifteen thousand, two hundred seventy-five".