99625453225 has 9 divisors (see below), whose sum is σ = 123537518967. Its totient is φ = 79699100040.

The previous prime is 99625453201. The next prime is 99625453237. The reversal of 99625453225 is 52235452699.

It is a happy number.

The square root of 99625453225 is 315635.

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., 35865163161 + 63760290064 = 189381^2 + 252508^2 .

It is not a de Polignac number, because 99625453225 - 2⁹ = 99625452713 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, 1546612 + ... + 1609738.

Almost surely, 2^99625453225 is an apocalyptic number.

99625453225 is the 315635-th square number.

99625453225 is the 157818-th centered octagonal number.

It is an amenable number.

99625453225 is a deficient number, since it is larger than the sum of its proper divisors (23912065742).

99625453225 is an frugal number, since it uses more digits than its factorization.

99625453225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126264 (or 63132 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 52.

The spelling of 99625453225 in words is "ninety-nine billion, six hundred twenty-five million, four hundred fifty-three thousand, two hundred twenty-five".