57911089 has 2 divisors, whose sum is σ = 57911090. Its totient is φ = 57911088.

The previous prime is 57911071. The next prime is 57911101. The reversal of 57911089 is 98011975.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56927025 + 984064 = 7545^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 57911089 - 2⁷ = 57910961 is a prime.

It is not a weakly prime, because it can be changed into another prime (57911389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28955544 + 28955545.

It is an arithmetic number, because the mean of its divisors is an integer number (28955545).

Almost surely, 2^57911089 is an apocalyptic number.

It is an amenable number.

57911089 is a deficient number, since it is larger than the sum of its proper divisors (1).

57911089 is an equidigital number, since it uses as much as digits as its factorization.

57911089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 57911089 is about 7609.9335739545. The cubic root of 57911089 is about 386.8897677843.

The spelling of 57911089 in words is "fifty-seven million, nine hundred eleven thousand, eighty-nine".