57725252505 has 16 divisors (see below), whose sum is σ = 102622671360. Its totient is φ = 30786801264.

The previous prime is 57725252491. The next prime is 57725252531. The reversal of 57725252505 is 50525252775.

57725252505 is a `hidden beast` number, since 5 + 7 + 72 + 52 + 525 + 0 + 5 = 666.

It is not a de Polignac number, because 57725252505 - 2²¹ = 57723155353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 15 ways as a sum of consecutive naturals, for example, 213797097 + ... + 213797366.

It is an arithmetic number, because the mean of its divisors is an integer number (6413916960).

Almost surely, 2^57725252505 is an apocalyptic number.

It is an amenable number.

57725252505 is a deficient number, since it is larger than the sum of its proper divisors (44897418855).

57725252505 is a wasteful number, since it uses less digits than its factorization.

57725252505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427594477 (or 427594471 counting only the distinct ones).

The product of its (nonzero) digits is 1225000, while the sum is 45.

The spelling of 57725252505 in words is "fifty-seven billion, seven hundred twenty-five million, two hundred fifty-two thousand, five hundred five".