57120566721025 has 6 divisors (see below), whose sum is σ = 70829502734102. Its totient is φ = 45696453376800.

The previous prime is 57120566721019. The next prime is 57120566721037. The reversal of 57120566721025 is 52012766502175.

It can be written as a sum of positive squares in 3 ways, for example, as 10264789384641 + 46855777336384 = 3203871^2 + 6845128^2 .

It is not a de Polignac number, because 57120566721025 - 2³ = 57120566721017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57120566721025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1142411334396 + ... + 1142411334445.

Almost surely, 2^{57120566721025} is an apocalyptic number.

It is an amenable number.

57120566721025 is a deficient number, since it is larger than the sum of its proper divisors (13708936013077).

57120566721025 is a wasteful number, since it uses less digits than its factorization.

57120566721025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284822668851 (or 2284822668846 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 57120566721025 in words is "fifty-seven trillion, one hundred twenty billion, five hundred sixty-six million, seven hundred twenty-one thousand, twenty-five".