56271312 has 120 divisors (see below), whose sum is σ = 168099360. Its totient is φ = 17521920.

The previous prime is 56271307. The next prime is 56271337. The reversal of 56271312 is 21317265.

It is a happy number.

56271312 is a `hidden beast` number, since 5 + 627 + 1 + 31 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358338 + ... + 358494.

It is an arithmetic number, because the mean of its divisors is an integer number (1400828).

Almost surely, 2^56271312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56271312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84049680).

56271312 is an abundant number, since it is smaller than the sum of its proper divisors (111828048).

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

56271312 is a wasteful number, since it uses less digits than its factorization.

56271312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 312 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 56271312 is about 7501.4206654473. The cubic root of 56271312 is about 383.2030999730.

Adding to 56271312 its reverse (21317265), we get a palindrome (77588577).

The spelling of 56271312 in words is "fifty-six million, two hundred seventy-one thousand, three hundred twelve".