56751261 has 24 divisors (see below), whose sum is σ = 88619040. Its totient is φ = 32209632.

The previous prime is 56751259. The next prime is 56751263. The reversal of 56751261 is 16215765.

It is an interprime number because it is at equal distance from previous prime (56751259) and next prime (56751263).

It is not a de Polignac number, because 56751261 - 2¹ = 56751259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56751263) 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, 21850 + ... + 24308.

It is an arithmetic number, because the mean of its divisors is an integer number (3692460).

Almost surely, 2^56751261 is an apocalyptic number.

It is an amenable number.

56751261 is a deficient number, since it is larger than the sum of its proper divisors (31867779).

56751261 is a wasteful number, since it uses less digits than its factorization.

56751261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633 (or 2626 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 56751261 is about 7533.3432817043. The cubic root of 56751261 is about 384.2894884667.

The spelling of 56751261 in words is "fifty-six million, seven hundred fifty-one thousand, two hundred sixty-one".