57229889 has 2 divisors, whose sum is σ = 57229890. Its totient is φ = 57229888.

The previous prime is 57229849. The next prime is 57229897. The reversal of 57229889 is 98892275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46471489 + 10758400 = 6817^2 + 3280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57229889 is a prime.

It is not a weakly prime, because it can be changed into another prime (57229829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28614944 + 28614945.

It is an arithmetic number, because the mean of its divisors is an integer number (28614945).

Almost surely, 2^57229889 is an apocalyptic number.

It is an amenable number.

57229889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57229889 is an equidigital number, since it uses as much as digits as its factorization.

57229889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The square root of 57229889 is about 7565.0438861913. The cubic root of 57229889 is about 385.3668039602.

The spelling of 57229889 in words is "fifty-seven million, two hundred twenty-nine thousand, eight hundred eighty-nine".