57021327 has 20 divisors (see below), whose sum is σ = 92925096. Its totient is φ = 34557840.

The previous prime is 57021313. The next prime is 57021379. The reversal of 57021327 is 72312075.

It is not a de Polignac number, because 57021327 - 2¹⁰ = 57020303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 57021327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57021127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31108 + ... + 32889.

Almost surely, 2^57021327 is an apocalyptic number.

57021327 is a deficient number, since it is larger than the sum of its proper divisors (35903769).

57021327 is a wasteful number, since it uses less digits than its factorization.

57021327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64020 (or 64011 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 57021327 is about 7551.2467182579. The cubic root of 57021327 is about 384.8981053787.

The spelling of 57021327 in words is "fifty-seven million, twenty-one thousand, three hundred twenty-seven".