56918371 has 2 divisors, whose sum is σ = 56918372. Its totient is φ = 56918370.

The previous prime is 56918359. The next prime is 56918419. The reversal of 56918371 is 17381965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56918371 - 2¹³ = 56910179 is a prime.

It is not a weakly prime, because it can be changed into another prime (56918171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28459185 + 28459186.

It is an arithmetic number, because the mean of its divisors is an integer number (28459186).

Almost surely, 2^56918371 is an apocalyptic number.

56918371 is a deficient number, since it is larger than the sum of its proper divisors (1).

56918371 is an equidigital number, since it uses as much as digits as its factorization.

56918371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 56918371 is about 7544.4264858238. The cubic root of 56918371 is about 384.6663123199. Note that the first 3 decimals are identical.

The spelling of 56918371 in words is "fifty-six million, nine hundred eighteen thousand, three hundred seventy-one".