56272313 has 4 divisors (see below), whose sum is σ = 56293620. Its totient is φ = 56251008.

The previous prime is 56272309. The next prime is 56272331. The reversal of 56272313 is 31327265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33965584 + 22306729 = 5828^2 + 4723^2 .

It is a cyclic number.

It is not a de Polignac number, because 56272313 - 2² = 56272309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (59272313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (14073405).

Almost surely, 2^56272313 is an apocalyptic number.

It is an amenable number.

56272313 is a deficient number, since it is larger than the sum of its proper divisors (21307).

56272313 is a wasteful number, since it uses less digits than its factorization.

56272313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21306.

The product of its digits is 7560, while the sum is 29.

The square root of 56272313 is about 7501.4873858456. The cubic root of 56272313 is about 383.2053722027.

Adding to 56272313 its reverse (31327265), we get a palindrome (87599578).

The spelling of 56272313 in words is "fifty-six million, two hundred seventy-two thousand, three hundred thirteen".