90970025 has 12 divisors (see below), whose sum is σ = 113047824. Its totient is φ = 72618000.

The previous prime is 90970003. The next prime is 90970031. The reversal of 90970025 is 52007909.

It is not a de Polignac number, because 90970025 - 2²⁴ = 74192809 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90969973 and 90970000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8570 + ... + 15980.

It is an arithmetic number, because the mean of its divisors is an integer number (9420652).

Almost surely, 2^90970025 is an apocalyptic number.

It is an amenable number.

90970025 is a deficient number, since it is larger than the sum of its proper divisors (22077799).

90970025 is a wasteful number, since it uses less digits than its factorization.

90970025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912 (or 7907 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 90970025 is about 9537.8207678694. The cubic root of 90970025 is about 449.7447523659.

The spelling of 90970025 in words is "ninety million, nine hundred seventy thousand, twenty-five".