57020089 has 4 divisors (see below), whose sum is σ = 65165824. Its totient is φ = 48874356.

The previous prime is 57020039. The next prime is 57020099. The reversal of 57020089 is 98002075.

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-57020089 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 57020089.

It is not an unprimeable number, because it can be changed into a prime (57020039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4072857 + ... + 4072870.

It is an arithmetic number, because the mean of its divisors is an integer number (16291456).

Almost surely, 2^57020089 is an apocalyptic number.

It is an amenable number.

57020089 is a deficient number, since it is larger than the sum of its proper divisors (8145735).

57020089 is an equidigital number, since it uses as much as digits as its factorization.

57020089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8145734.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 57020089 is about 7551.1647445940. The cubic root of 57020089 is about 384.8953198285.

The spelling of 57020089 in words is "fifty-seven million, twenty thousand, eighty-nine".