57815138053 has 2 divisors, whose sum is σ = 57815138054. Its totient is φ = 57815138052.

The previous prime is 57815138027. The next prime is 57815138071. The reversal of 57815138053 is 35083151875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57378453444 + 436684609 = 239538^2 + 20897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57815138053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57815137994 and 57815138012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57815138083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28907569026 + 28907569027.

It is an arithmetic number, because the mean of its divisors is an integer number (28907569027).

Almost surely, 2^57815138053 is an apocalyptic number.

It is an amenable number.

57815138053 is a deficient number, since it is larger than the sum of its proper divisors (1).

57815138053 is an equidigital number, since it uses as much as digits as its factorization.

57815138053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 57815138053 in words is "fifty-seven billion, eight hundred fifteen million, one hundred thirty-eight thousand, fifty-three".