57238249 has 4 divisors (see below), whose sum is σ = 57295440. Its totient is φ = 57181060.

The previous prime is 57238243. The next prime is 57238253. The reversal of 57238249 is 94283275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57238249 - 2²³ = 48849641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57238243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27067 + ... + 29104.

It is an arithmetic number, because the mean of its divisors is an integer number (14323860).

Almost surely, 2^57238249 is an apocalyptic number.

It is an amenable number.

57238249 is a deficient number, since it is larger than the sum of its proper divisors (57191).

57238249 is a wasteful number, since it uses less digits than its factorization.

57238249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57190.

The product of its digits is 120960, while the sum is 40.

The square root of 57238249 is about 7565.5964074222. The cubic root of 57238249 is about 385.3855675217.

The spelling of 57238249 in words is "fifty-seven million, two hundred thirty-eight thousand, two hundred forty-nine".