57233887 has 4 divisors (see below), whose sum is σ = 57479760. Its totient is φ = 56988016.

The previous prime is 57233873. The next prime is 57233893. The reversal of 57233887 is 78833275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57233887 - 2¹⁵ = 57201119 is a prime.

It is a super-2 number, since 2×57233887² = 6551435642257538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57233807) 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, 122587 + ... + 123052.

It is an arithmetic number, because the mean of its divisors is an integer number (14369940).

Almost surely, 2^57233887 is an apocalyptic number.

57233887 is a deficient number, since it is larger than the sum of its proper divisors (245873).

57233887 is a wasteful number, since it uses less digits than its factorization.

57233887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245872.

The product of its digits is 282240, while the sum is 43.

The square root of 57233887 is about 7565.3081232690. The cubic root of 57233887 is about 385.3757774799.

The spelling of 57233887 in words is "fifty-seven million, two hundred thirty-three thousand, eight hundred eighty-seven".