57507253887 has 16 divisors (see below), whose sum is σ = 82035086720. Its totient is φ = 35724952800.

The previous prime is 57507253883. The next prime is 57507253943. The reversal of 57507253887 is 78835270575.

It is not a de Polignac number, because 57507253887 - 2² = 57507253883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57507253883) 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, 8266189 + ... + 8273142.

It is an arithmetic number, because the mean of its divisors is an integer number (5127192920).

Almost surely, 2^57507253887 is an apocalyptic number.

57507253887 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

57507253887 is a deficient number, since it is larger than the sum of its proper divisors (24527832833).

57507253887 is a wasteful number, since it uses less digits than its factorization.

57507253887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16539414.

The product of its (nonzero) digits is 16464000, while the sum is 57.

The spelling of 57507253887 in words is "fifty-seven billion, five hundred seven million, two hundred fifty-three thousand, eight hundred eighty-seven".