56631270 has 32 divisors (see below), whose sum is σ = 136113120. Its totient is φ = 15079680.

The previous prime is 56631269. The next prime is 56631271. The reversal of 56631270 is 7213665.

It is an interprime number because it is at equal distance from previous prime (56631269) and next prime (56631271).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56631271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38916 + ... + 40344.

It is an arithmetic number, because the mean of its divisors is an integer number (4253535).

Almost surely, 2^56631270 is an apocalyptic number.

56631270 is an abundant number, since it is smaller than the sum of its proper divisors (79481850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56631270 is a wasteful number, since it uses less digits than its factorization.

56631270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 56631270 is about 7525.3750737090. The cubic root of 56631270 is about 384.0184588566.

The spelling of 56631270 in words is "fifty-six million, six hundred thirty-one thousand, two hundred seventy".