90022025 has 6 divisors (see below), whose sum is σ = 111627342. Its totient is φ = 72017600.

The previous prime is 90022013. The next prime is 90022039. The reversal of 90022025 is 52022009.

It can be written as a sum of positive squares in 3 ways, for example, as 13564489 + 76457536 = 3683^2 + 8744^2 .

It is not a de Polignac number, because 90022025 - 2⁸ = 90021769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90021988 and 90022006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1800416 + ... + 1800465.

It is an arithmetic number, because the mean of its divisors is an integer number (18604557).

Almost surely, 2^90022025 is an apocalyptic number.

It is an amenable number.

90022025 is a deficient number, since it is larger than the sum of its proper divisors (21605317).

90022025 is a wasteful number, since it uses less digits than its factorization.

90022025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600891 (or 3600886 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 90022025 is about 9487.9937289187. The cubic root of 90022025 is about 448.1770283183.

The spelling of 90022025 in words is "ninety million, twenty-two thousand, twenty-five".