57532861 has 4 divisors (see below), whose sum is σ = 58226112. Its totient is φ = 56839612.

The previous prime is 57532859. The next prime is 57532873. The reversal of 57532861 is 16823575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57532861 - 2¹ = 57532859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57532861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57532801) 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 3 ways as a sum of consecutive naturals, for example, 346501 + ... + 346666.

It is an arithmetic number, because the mean of its divisors is an integer number (14556528).

Almost surely, 2^57532861 is an apocalyptic number.

It is an amenable number.

57532861 is a deficient number, since it is larger than the sum of its proper divisors (693251).

57532861 is an equidigital number, since it uses as much as digits as its factorization.

57532861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693250.

The product of its digits is 50400, while the sum is 37.

The square root of 57532861 is about 7585.0419247358. The cubic root of 57532861 is about 386.0456445974.

The spelling of 57532861 in words is "fifty-seven million, five hundred thirty-two thousand, eight hundred sixty-one".