57085571951 has 4 divisors (see below), whose sum is σ = 57098861232. Its totient is φ = 57072282672.

The previous prime is 57085571929. The next prime is 57085572007. The reversal of 57085571951 is 15917558075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57085571951 - 2²⁶ = 57018463087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57085571893 and 57085571902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57085570951) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6638195 + ... + 6646788.

It is an arithmetic number, because the mean of its divisors is an integer number (14274715308).

Almost surely, 2^57085571951 is an apocalyptic number.

57085571951 is a deficient number, since it is larger than the sum of its proper divisors (13289281).

57085571951 is a wasteful number, since it uses less digits than its factorization.

57085571951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13289280.

The product of its (nonzero) digits is 2205000, while the sum is 53.

The spelling of 57085571951 in words is "fifty-seven billion, eighty-five million, five hundred seventy-one thousand, nine hundred fifty-one".