57409533 has 16 divisors (see below), whose sum is σ = 87351360. Its totient is φ = 37237968.

The previous prime is 57409529. The next prime is 57409559. The reversal of 57409533 is 33590475.

It is not a de Polignac number, because 57409533 - 2² = 57409529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57409133) 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, 27735 + ... + 29732.

It is an arithmetic number, because the mean of its divisors is an integer number (5459460).

Almost surely, 2^57409533 is an apocalyptic number.

It is an amenable number.

57409533 is a deficient number, since it is larger than the sum of its proper divisors (29941827).

57409533 is a wasteful number, since it uses less digits than its factorization.

57409533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57513 (or 57507 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 57409533 is about 7576.9078785478. The cubic root of 57409533 is about 385.7696035300.

The spelling of 57409533 in words is "fifty-seven million, four hundred nine thousand, five hundred thirty-three".