57252771690 has 64 divisors (see below), whose sum is σ = 139235314176. Its totient is φ = 15064680512.

The previous prime is 57252771679. The next prime is 57252771739. The reversal of 57252771690 is 9617725275.

It is a super-2 number, since 2×57252771690² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2045329 + ... + 2073131.

It is an arithmetic number, because the mean of its divisors is an integer number (2175551784).

Almost surely, 2^57252771690 is an apocalyptic number.

57252771690 is an abundant number, since it is smaller than the sum of its proper divisors (81982542486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57252771690 is a wasteful number, since it uses less digits than its factorization.

57252771690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28723.

The product of its (nonzero) digits is 1852200, while the sum is 51.

The spelling of 57252771690 in words is "fifty-seven billion, two hundred fifty-two million, seven hundred seventy-one thousand, six hundred ninety".