57238965 has 24 divisors (see below), whose sum is σ = 113388288. Its totient is φ = 26166240.

The previous prime is 57238939. The next prime is 57238981. The reversal of 57238965 is 56983275.

It is a happy number.

It is not a de Polignac number, because 57238965 - 2⁹ = 57238453 is a prime.

It is a super-2 number, since 2×57238965² = 6552598228542450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57238965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90541 + ... + 91170.

It is an arithmetic number, because the mean of its divisors is an integer number (4724512).

Almost surely, 2^57238965 is an apocalyptic number.

It is an amenable number.

57238965 is a deficient number, since it is larger than the sum of its proper divisors (56149323).

57238965 is a wasteful number, since it uses less digits than its factorization.

57238965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181729 (or 181726 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 57238965 is about 7565.6437267426. The cubic root of 57238965 is about 385.3871744595.

The spelling of 57238965 in words is "fifty-seven million, two hundred thirty-eight thousand, nine hundred sixty-five".