57432249 has 24 divisors (see below), whose sum is σ = 95022720. Its totient is φ = 32744448.

The previous prime is 57432247. The next prime is 57432257. The reversal of 57432249 is 94223475.

It is not a de Polignac number, because 57432249 - 2¹ = 57432247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57432241) 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, 40057 + ... + 41465.

It is an arithmetic number, because the mean of its divisors is an integer number (3959280).

Almost surely, 2^57432249 is an apocalyptic number.

It is an amenable number.

57432249 is a deficient number, since it is larger than the sum of its proper divisors (37590471).

57432249 is a wasteful number, since it uses less digits than its factorization.

57432249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2066 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 57432249 is about 7578.4067586796. The cubic root of 57432249 is about 385.8204776984.

It can be divided in two parts, 574 and 32249, that added together give a palindrome (32823).

The spelling of 57432249 in words is "fifty-seven million, four hundred thirty-two thousand, two hundred forty-nine".