57458813 has 2 divisors, whose sum is σ = 57458814. Its totient is φ = 57458812.

The previous prime is 57458803. The next prime is 57458851. The reversal of 57458813 is 31885475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41242084 + 16216729 = 6422^2 + 4027^2 .

It is a cyclic number.

It is not a de Polignac number, because 57458813 - 2⁶ = 57458749 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 (57458803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28729406 + 28729407.

It is an arithmetic number, because the mean of its divisors is an integer number (28729407).

Almost surely, 2^57458813 is an apocalyptic number.

It is an amenable number.

57458813 is a deficient number, since it is larger than the sum of its proper divisors (1).

57458813 is an equidigital number, since it uses as much as digits as its factorization.

57458813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

The square root of 57458813 is about 7580.1591671943. The cubic root of 57458813 is about 385.8799527356.

The spelling of 57458813 in words is "fifty-seven million, four hundred fifty-eight thousand, eight hundred thirteen".