56374391 has 2 divisors, whose sum is σ = 56374392. Its totient is φ = 56374390.

The previous prime is 56374379. The next prime is 56374427. The reversal of 56374391 is 19347365.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56374391 - 2⁶ = 56374327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56374891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28187195 + 28187196.

It is an arithmetic number, because the mean of its divisors is an integer number (28187196).

Almost surely, 2^56374391 is an apocalyptic number.

56374391 is a deficient number, since it is larger than the sum of its proper divisors (1).

56374391 is an equidigital number, since it uses as much as digits as its factorization.

56374391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 56374391 is about 7508.2881537671. The cubic root of 56374391 is about 383.4369438054.

It can be divided in two parts, 56374 and 391, that added together give a palindrome (56765).

The spelling of 56374391 in words is "fifty-six million, three hundred seventy-four thousand, three hundred ninety-one".