57020022 has 24 divisors (see below), whose sum is σ = 123683664. Its totient is φ = 18985104.

The previous prime is 57020017. The next prime is 57020027. The reversal of 57020022 is 22002075.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57020017) and next prime (57020027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 57019977 and 57020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57020027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26748 + ... + 28800.

It is an arithmetic number, because the mean of its divisors is an integer number (5153486).

Almost surely, 2^57020022 is an apocalyptic number.

57020022 is an abundant number, since it is smaller than the sum of its proper divisors (66663642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57020022 is a wasteful number, since it uses less digits than its factorization.

57020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 57020022 is about 7551.1603081911. The cubic root of 57020022 is about 384.8951690746.

Adding to 57020022 its reverse (22002075), we get a palindrome (79022097).

The spelling of 57020022 in words is "fifty-seven million, twenty thousand, twenty-two".