89281553 has 2 divisors, whose sum is σ = 89281554. Its totient is φ = 89281552.

The previous prime is 89281547. The next prime is 89281567. The reversal of 89281553 is 35518298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52896529 + 36385024 = 7273^2 + 6032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89281553 is a prime.

It is equal to p_5177966 and since 89281553 and 5177966 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89281553.

It is not a weakly prime, because it can be changed into another prime (89286553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44640776 + 44640777.

It is an arithmetic number, because the mean of its divisors is an integer number (44640777).

Almost surely, 2^89281553 is an apocalyptic number.

It is an amenable number.

89281553 is a deficient number, since it is larger than the sum of its proper divisors (1).

89281553 is an equidigital number, since it uses as much as digits as its factorization.

89281553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 41.

The square root of 89281553 is about 9448.8916281223. The cubic root of 89281553 is about 446.9448238361.

The spelling of 89281553 in words is "eighty-nine million, two hundred eighty-one thousand, five hundred fifty-three".