57113923 has 2 divisors, whose sum is σ = 57113924. Its totient is φ = 57113922.

The previous prime is 57113909. The next prime is 57113939. The reversal of 57113923 is 32931175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57113923 - 2²¹ = 55016771 is a prime.

It is not a weakly prime, because it can be changed into another prime (57113723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28556961 + 28556962.

It is an arithmetic number, because the mean of its divisors is an integer number (28556962).

Almost surely, 2^57113923 is an apocalyptic number.

57113923 is a deficient number, since it is larger than the sum of its proper divisors (1).

57113923 is an equidigital number, since it uses as much as digits as its factorization.

57113923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 57113923 is about 7557.3754041995. The cubic root of 57113923 is about 385.1063359506.

The spelling of 57113923 in words is "fifty-seven million, one hundred thirteen thousand, nine hundred twenty-three".