57531783971 has 8 divisors (see below), whose sum is σ = 58636316160. Its totient is φ = 56437432128.

The previous prime is 57531783961. The next prime is 57531784001. The reversal of 57531783971 is 17938713575.

It is a happy number.

57531783971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57531783971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57531783931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2533676 + ... + 2556281.

It is an arithmetic number, because the mean of its divisors is an integer number (7329539520).

Almost surely, 2^57531783971 is an apocalyptic number.

57531783971 is a deficient number, since it is larger than the sum of its proper divisors (1104532189).

57531783971 is a wasteful number, since it uses less digits than its factorization.

57531783971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090173.

The product of its digits is 5556600, while the sum is 56.

The spelling of 57531783971 in words is "fifty-seven billion, five hundred thirty-one million, seven hundred eighty-three thousand, nine hundred seventy-one".