89775625 has 15 divisors (see below), whose sum is σ = 112480401. Its totient is φ = 71631000.

The previous prime is 89775611. The next prime is 89775661. The reversal of 89775625 is 52657798.

The square root of 89775625 is 9475.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 82737216 = 2653^2 + 9096^2 .

It is a de Polignac number, because none of the positive numbers 2^k-89775625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 236686 + ... + 237064.

Almost surely, 2^89775625 is an apocalyptic number.

89775625 is the 9475-th square number.

89775625 is the 4738-th centered octagonal number.

It is an amenable number.

89775625 is a deficient number, since it is larger than the sum of its proper divisors (22704776).

89775625 is an frugal number, since it uses more digits than its factorization.

89775625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 384 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 49.

The cubic root of 89775625 is about 447.7677517109.

Multiplying 89775625 by its sum of digits (49), we get a square (4399005625 = 66325²).

The spelling of 89775625 in words is "eighty-nine million, seven hundred seventy-five thousand, six hundred twenty-five".