89705025 has 36 divisors (see below), whose sum is σ = 161465980. Its totient is φ = 47606400.

The previous prime is 89704973. The next prime is 89705047. The reversal of 89705025 is 52050798.

89705025 is a `hidden beast` number, since 89 + 70 + 502 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5817744 + 83887281 = 2412^2 + 9159^2 .

It is not a de Polignac number, because 89705025 - 2⁶ = 89704961 is a prime.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 50655 + ... + 52395.

Almost surely, 2^89705025 is an apocalyptic number.

It is an amenable number.

89705025 is a deficient number, since it is larger than the sum of its proper divisors (71760955).

89705025 is a wasteful number, since it uses less digits than its factorization.

89705025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 89705025 is about 9471.2736735879. The cubic root of 89705025 is about 447.6503453302.

The spelling of 89705025 in words is "eighty-nine million, seven hundred five thousand, twenty-five".