57506533 has 8 divisors (see below), whose sum is σ = 66836160. Its totient is φ = 48455520.

The previous prime is 57506513. The next prime is 57506539. The reversal of 57506533 is 33560575.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57506533 - 2⁹ = 57506021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57506539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69208 + ... + 70033.

It is an arithmetic number, because the mean of its divisors is an integer number (8354520).

Almost surely, 2^57506533 is an apocalyptic number.

It is an amenable number.

57506533 is a deficient number, since it is larger than the sum of its proper divisors (9329627).

57506533 is a wasteful number, since it uses less digits than its factorization.

57506533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139307.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 57506533 is about 7583.3062050797. The cubic root of 57506533 is about 385.9867486301.

The spelling of 57506533 in words is "fifty-seven million, five hundred six thousand, five hundred thirty-three".