89522569 has 2 divisors, whose sum is σ = 89522570. Its totient is φ = 89522568.

The previous prime is 89522549. The next prime is 89522593. The reversal of 89522569 is 96522598.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48818169 + 40704400 = 6987^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 89522569 - 2¹⁵ = 89489801 is a prime.

It is a super-2 number, since 2×89522569² = 16028580720719522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89522549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44761284 + 44761285.

It is an arithmetic number, because the mean of its divisors is an integer number (44761285).

Almost surely, 2^89522569 is an apocalyptic number.

It is an amenable number.

89522569 is a deficient number, since it is larger than the sum of its proper divisors (1).

89522569 is an equidigital number, since it uses as much as digits as its factorization.

89522569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 89522569 is about 9461.6366977389. The cubic root of 89522569 is about 447.3466390830.

The spelling of 89522569 in words is "eighty-nine million, five hundred twenty-two thousand, five hundred sixty-nine".