89981253 has 16 divisors (see below), whose sum is σ = 134160960. Its totient is φ = 59602608.

The previous prime is 89981197. The next prime is 89981263. The reversal of 89981253 is 35218998.

It is a happy number.

It is not a de Polignac number, because 89981253 - 2¹⁴ = 89964869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89981199 and 89981208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89981263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6375 + ... + 14852.

It is an arithmetic number, because the mean of its divisors is an integer number (8385060).

Almost surely, 2^89981253 is an apocalyptic number.

It is an amenable number.

89981253 is a deficient number, since it is larger than the sum of its proper divisors (44179707).

89981253 is a wasteful number, since it uses less digits than its factorization.

89981253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21393 (or 21387 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 89981253 is about 9485.8448753920. The cubic root of 89981253 is about 448.1093566080.

The spelling of 89981253 in words is "eighty-nine million, nine hundred eighty-one thousand, two hundred fifty-three".