57131963 has 8 divisors (see below), whose sum is σ = 65940960. Its totient is φ = 48484800.

The previous prime is 57131957. The next prime is 57131981. The reversal of 57131963 is 36913175.

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

It is not a de Polignac number, because 57131963 - 2⁸ = 57131707 is a prime.

It is a super-2 number, since 2×57131963² = 6528122392466738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57131923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39698 + ... + 41111.

It is an arithmetic number, because the mean of its divisors is an integer number (8242620).

Almost surely, 2^57131963 is an apocalyptic number.

57131963 is a deficient number, since it is larger than the sum of its proper divisors (8808997).

57131963 is a wasteful number, since it uses less digits than its factorization.

57131963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80917.

The product of its digits is 17010, while the sum is 35.

The square root of 57131963 is about 7558.5688460184. The cubic root of 57131963 is about 385.1468782364.

The spelling of 57131963 in words is "fifty-seven million, one hundred thirty-one thousand, nine hundred sixty-three".