57048931 has 4 divisors (see below), whose sum is σ = 58590832. Its totient is φ = 55507032.

The previous prime is 57048913. The next prime is 57048949. The reversal of 57048931 is 13984075.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57048913) and next prime (57048949).

It is a cyclic number.

It is not a de Polignac number, because 57048931 - 2⁵ = 57048899 is a prime.

It is a super-2 number, since 2×57048931² = 6509161056485522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1541863 = 57048931 / (5 + 7 + 0 + 4 + 8 + 9 + 3 + 1).

It is not an unprimeable number, because it can be changed into a prime (57048031) 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 3 ways as a sum of consecutive naturals, for example, 770895 + ... + 770968.

It is an arithmetic number, because the mean of its divisors is an integer number (14647708).

Almost surely, 2^57048931 is an apocalyptic number.

57048931 is a deficient number, since it is larger than the sum of its proper divisors (1541901).

57048931 is a wasteful number, since it uses less digits than its factorization.

57048931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541900.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 57048931 is about 7553.0742747573. The cubic root of 57048931 is about 384.9602050283.

The spelling of 57048931 in words is "fifty-seven million, forty-eight thousand, nine hundred thirty-one".