90459625 has 16 divisors (see below), whose sum is σ = 114266880. Its totient is φ = 71487600.

The previous prime is 90459623. The next prime is 90459673. The reversal of 90459625 is 52695409.

It is not a de Polignac number, because 90459625 - 2¹ = 90459623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90459623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6016 + ... + 14734.

It is an arithmetic number, because the mean of its divisors is an integer number (7141680).

Almost surely, 2^90459625 is an apocalyptic number.

It is an amenable number.

90459625 is a deficient number, since it is larger than the sum of its proper divisors (23807255).

90459625 is an equidigital number, since it uses as much as digits as its factorization.

90459625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817 (or 8807 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 90459625 is about 9511.0264955997. The cubic root of 90459625 is about 448.9020558415.

The spelling of 90459625 in words is "ninety million, four hundred fifty-nine thousand, six hundred twenty-five".