57881225521 has 16 divisors (see below), whose sum is σ = 66322548864. Its totient is φ = 49483223424.

The previous prime is 57881225513. The next prime is 57881225551. The reversal of 57881225521 is 12552218875.

It is a cyclic number.

It is not a de Polignac number, because 57881225521 - 2³ = 57881225513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57881225551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4390686 + ... + 4403848.

It is an arithmetic number, because the mean of its divisors is an integer number (4145159304).

Almost surely, 2^57881225521 is an apocalyptic number.

It is an amenable number.

57881225521 is a deficient number, since it is larger than the sum of its proper divisors (8441323343).

57881225521 is a wasteful number, since it uses less digits than its factorization.

57881225521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760.

The product of its digits is 448000, while the sum is 46.

The spelling of 57881225521 in words is "fifty-seven billion, eight hundred eighty-one million, two hundred twenty-five thousand, five hundred twenty-one".