57420581 has 8 divisors (see below), whose sum is σ = 60900864. Its totient is φ = 54022320.

The previous prime is 57420569. The next prime is 57420589. The reversal of 57420581 is 18502475.

57420581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57420581 is a prime.

It is a super-2 number, since 2×57420581² = 6594246244755122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57420589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19061 + ... + 21866.

It is an arithmetic number, because the mean of its divisors is an integer number (7612608).

Almost surely, 2^57420581 is an apocalyptic number.

It is an amenable number.

57420581 is a deficient number, since it is larger than the sum of its proper divisors (3480283).

57420581 is a wasteful number, since it uses less digits than its factorization.

57420581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41011.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 57420581 is about 7577.6369007759. The cubic root of 57420581 is about 385.7943480221.

The spelling of 57420581 in words is "fifty-seven million, four hundred twenty thousand, five hundred eighty-one".