89921025 has 36 divisors (see below), whose sum is σ = 166624380. Its totient is φ = 46300800.

The previous prime is 89921023. The next prime is 89921033. The reversal of 89921025 is 52012998.

It can be written as a sum of positive squares in 6 ways, for example, as 788544 + 89132481 = 888^2 + 9441^2 .

It is not a de Polignac number, because 89921025 - 2¹ = 89921023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89921021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 366 + ... + 13415.

It is an arithmetic number, because the mean of its divisors is an integer number (4628455).

Almost surely, 2^89921025 is an apocalyptic number.

It is an amenable number.

89921025 is a deficient number, since it is larger than the sum of its proper divisors (76703355).

89921025 is a wasteful number, since it uses less digits than its factorization.

89921025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13826 (or 13818 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 89921025 is about 9482.6697190190. The cubic root of 89921025 is about 448.0093552070.

The spelling of 89921025 in words is "eighty-nine million, nine hundred twenty-one thousand, twenty-five".