57535998631 has 4 divisors (see below), whose sum is σ = 57536539632. Its totient is φ = 57535457632.

The previous prime is 57535998629. The next prime is 57535998661. The reversal of 57535998631 is 13689953575.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57535998631 - 2¹ = 57535998629 is a prime.

It is a super-2 number, since 2×57535998631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57535998631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57535998661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52306 + ... + 343231.

It is an arithmetic number, because the mean of its divisors is an integer number (14384134908).

Almost surely, 2^57535998631 is an apocalyptic number.

57535998631 is a deficient number, since it is larger than the sum of its proper divisors (541001).

57535998631 is a wasteful number, since it uses less digits than its factorization.

57535998631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541000.

The product of its digits is 30618000, while the sum is 61.

The spelling of 57535998631 in words is "fifty-seven billion, five hundred thirty-five million, nine hundred ninety-eight thousand, six hundred thirty-one".