57908053409 has 2 divisors, whose sum is σ = 57908053410. Its totient is φ = 57908053408.

The previous prime is 57908053403. The next prime is 57908053417. The reversal of 57908053409 is 90435080975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50412822784 + 7495230625 = 224528^2 + 86575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57908053409 is a prime.

It is not a weakly prime, because it can be changed into another prime (57908053403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28954026704 + 28954026705.

It is an arithmetic number, because the mean of its divisors is an integer number (28954026705).

Almost surely, 2^57908053409 is an apocalyptic number.

It is an amenable number.

57908053409 is a deficient number, since it is larger than the sum of its proper divisors (1).

57908053409 is an equidigital number, since it uses as much as digits as its factorization.

57908053409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 57908053409 in words is "fifty-seven billion, nine hundred eight million, fifty-three thousand, four hundred nine".