56274431 has 2 divisors, whose sum is σ = 56274432. Its totient is φ = 56274430.

The previous prime is 56274397. The next prime is 56274443. The reversal of 56274431 is 13447265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56274431 - 2⁶ = 56274367 is a prime.

It is a super-2 number, since 2×56274431² = 6333623168747522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56274461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28137215 + 28137216.

It is an arithmetic number, because the mean of its divisors is an integer number (28137216).

Almost surely, 2^56274431 is an apocalyptic number.

56274431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56274431 is an equidigital number, since it uses as much as digits as its factorization.

56274431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 56274431 is about 7501.6285565202. The cubic root of 56274431 is about 383.2101798884.

The spelling of 56274431 in words is "fifty-six million, two hundred seventy-four thousand, four hundred thirty-one".