57591243 has 24 divisors (see below), whose sum is σ = 86643648. Its totient is φ = 38227464.

The previous prime is 57591239. The next prime is 57591253. The reversal of 57591243 is 34219575.

It is not a de Polignac number, because 57591243 - 2² = 57591239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57591198 and 57591207.

It is not an unprimeable number, because it can be changed into a prime (57591253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83980 + ... + 84662.

It is an arithmetic number, because the mean of its divisors is an integer number (3610152).

Almost surely, 2^57591243 is an apocalyptic number.

57591243 is a deficient number, since it is larger than the sum of its proper divisors (29052405).

57591243 is an equidigital number, since it uses as much as digits as its factorization.

57591243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1033 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 57591243 is about 7588.8894444444. The cubic root of 57591243 is about 386.1761815760.

The spelling of 57591243 in words is "fifty-seven million, five hundred ninety-one thousand, two hundred forty-three".