57022890 has 16 divisors (see below), whose sum is σ = 136855008. Its totient is φ = 15206096.

The previous prime is 57022877. The next prime is 57022897. The reversal of 57022890 is 9822075.

57022890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57022897) 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, 950352 + ... + 950411.

It is an arithmetic number, because the mean of its divisors is an integer number (8553438).

Almost surely, 2^57022890 is an apocalyptic number.

57022890 is an abundant number, since it is smaller than the sum of its proper divisors (79832118).

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

57022890 is a wasteful number, since it uses less digits than its factorization.

57022890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900773.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 57022890 is about 7551.3502103928. The cubic root of 57022890 is about 384.9016221344.

The spelling of 57022890 in words is "fifty-seven million, twenty-two thousand, eight hundred ninety".