57421133 has 16 divisors (see below), whose sum is σ = 74704896. Its totient is φ = 42797040.

The previous prime is 57421129. The next prime is 57421139. The reversal of 57421133 is 33112475.

It is not a de Polignac number, because 57421133 - 2² = 57421129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57421139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14441 + ... + 17982.

It is an arithmetic number, because the mean of its divisors is an integer number (4669056).

Almost surely, 2^57421133 is an apocalyptic number.

It is an amenable number.

57421133 is a deficient number, since it is larger than the sum of its proper divisors (17283763).

57421133 is a wasteful number, since it uses less digits than its factorization.

57421133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32464.

The product of its digits is 2520, while the sum is 26.

The square root of 57421133 is about 7577.6733236528. The cubic root of 57421133 is about 385.7955842676.

The spelling of 57421133 in words is "fifty-seven million, four hundred twenty-one thousand, one hundred thirty-three".