57513943 has 2 divisors, whose sum is σ = 57513944. Its totient is φ = 57513942.

The previous prime is 57513923. The next prime is 57513979. The reversal of 57513943 is 34931575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57513943 - 2²¹ = 55416791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57513913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756971 + 28756972.

It is an arithmetic number, because the mean of its divisors is an integer number (28756972).

Almost surely, 2^57513943 is an apocalyptic number.

57513943 is a deficient number, since it is larger than the sum of its proper divisors (1).

57513943 is an equidigital number, since it uses as much as digits as its factorization.

57513943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 57513943 is about 7583.7947625183. The cubic root of 57513943 is about 386.0033266826.

The spelling of 57513943 in words is "fifty-seven million, five hundred thirteen thousand, nine hundred forty-three".