57506455121 has 2 divisors, whose sum is σ = 57506455122. Its totient is φ = 57506455120.

The previous prime is 57506455093. The next prime is 57506455217. The reversal of 57506455121 is 12155460575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54644205121 + 2862250000 = 233761^2 + 53500^2 .

It is a cyclic number.

It is not a de Polignac number, because 57506455121 - 2⁶ = 57506455057 is a prime.

It is not a weakly prime, because it can be changed into another prime (57506455421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28753227560 + 28753227561.

It is an arithmetic number, because the mean of its divisors is an integer number (28753227561).

Almost surely, 2^57506455121 is an apocalyptic number.

It is an amenable number.

57506455121 is a deficient number, since it is larger than the sum of its proper divisors (1).

57506455121 is an equidigital number, since it uses as much as digits as its factorization.

57506455121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 57506455121 in words is "fifty-seven billion, five hundred six million, four hundred fifty-five thousand, one hundred twenty-one".