57243357 has 12 divisors (see below), whose sum is σ = 83682144. Its totient is φ = 37701960.

The previous prime is 57243337. The next prime is 57243377. The reversal of 57243357 is 75334275.

57243357 is a `hidden beast` number, since 572 + 4 + 33 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (57243337) and next prime (57243377).

It is not a de Polignac number, because 57243357 - 2⁶ = 57243293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57243317) 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 11 ways as a sum of consecutive naturals, for example, 37569 + ... + 39062.

It is an arithmetic number, because the mean of its divisors is an integer number (6973512).

Almost surely, 2^57243357 is an apocalyptic number.

It is an amenable number.

57243357 is a deficient number, since it is larger than the sum of its proper divisors (26438787).

57243357 is a wasteful number, since it uses less digits than its factorization.

57243357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76720 (or 76717 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 57243357 is about 7565.9339806795. The cubic root of 57243357 is about 385.3970312484.

It can be divided in two parts, 57243 and 357, that added together give a square (57600 = 240²).

The spelling of 57243357 in words is "fifty-seven million, two hundred forty-three thousand, three hundred fifty-seven".