57347081 has 4 divisors (see below), whose sum is σ = 62560464. Its totient is φ = 52133700.

The previous prime is 57347071. The next prime is 57347083. The reversal of 57347081 is 18074375.

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 a de Polignac number, because none of the positive numbers 2^k-57347081 is a prime.

It is a super-2 number, since 2×57347081² = 6577375398441122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57347083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2606675 + ... + 2606696.

It is an arithmetic number, because the mean of its divisors is an integer number (15640116).

Almost surely, 2^57347081 is an apocalyptic number.

It is an amenable number.

57347081 is a deficient number, since it is larger than the sum of its proper divisors (5213383).

57347081 is a wasteful number, since it uses less digits than its factorization.

57347081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213382.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 57347081 is about 7572.7855509053. The cubic root of 57347081 is about 385.6296684393.

The spelling of 57347081 in words is "fifty-seven million, three hundred forty-seven thousand, eighty-one".