89997000025 has 9 divisors (see below), whose sum is σ = 111598140031. Its totient is φ = 71996400040.

The previous prime is 89997000017. The next prime is 89997000053. The reversal of 89997000025 is 52000079998.

The square root of 89997000025 is 299995.

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

It can be written as a sum of positive squares in only one way, i.e., 32398920009 + 57598080016 = 179997^2 + 239996^2 .

It is not a de Polignac number, because 89997000025 - 2³ = 89997000017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1469976 + ... + 1529974.

Almost surely, 2^89997000025 is an apocalyptic number.

89997000025 is the 299995-th square number.

89997000025 is the 149998-th centered octagonal number.

It is an amenable number.

89997000025 is a deficient number, since it is larger than the sum of its proper divisors (21601140006).

89997000025 is an frugal number, since it uses more digits than its factorization.

89997000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120008 (or 60004 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

Multiplying 89997000025 by its sum of digits (49), we get a square (4409853001225 = 2099965²).

The spelling of 89997000025 in words is "eighty-nine billion, nine hundred ninety-seven million, twenty-five", and thus it is an aban number.