57556661425 has 12 divisors (see below), whose sum is σ = 71377408240. Its totient is φ = 46040717520.

The previous prime is 57556661401. The next prime is 57556661479. The reversal of 57556661425 is 52416665575.

It is not a de Polignac number, because 57556661425 - 2²¹ = 57554564273 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151414 + ... + 371536.

Almost surely, 2^57556661425 is an apocalyptic number.

It is an amenable number.

57556661425 is a deficient number, since it is larger than the sum of its proper divisors (13820746815).

57556661425 is a wasteful number, since it uses less digits than its factorization.

57556661425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230592 (or 230587 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 52.

The spelling of 57556661425 in words is "fifty-seven billion, five hundred fifty-six million, six hundred sixty-one thousand, four hundred twenty-five".