57036287 has 24 divisors (see below), whose sum is σ = 72616320. Its totient is φ = 43519680.

The previous prime is 57036269. The next prime is 57036293. The reversal of 57036287 is 78263075.

It is a happy number.

It is not a de Polignac number, because 57036287 - 2⁶ = 57036223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57036287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57036257) 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, 410264 + ... + 410402.

It is an arithmetic number, because the mean of its divisors is an integer number (3025680).

Almost surely, 2^57036287 is an apocalyptic number.

57036287 is a deficient number, since it is larger than the sum of its proper divisors (15580033).

57036287 is a wasteful number, since it uses less digits than its factorization.

57036287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 57036287 is about 7552.2372182023. The cubic root of 57036287 is about 384.9317627982.

The spelling of 57036287 in words is "fifty-seven million, thirty-six thousand, two hundred eighty-seven".