90504825 has 12 divisors (see below), whose sum is σ = 149634768. Its totient is φ = 48269200.

The previous prime is 90504823. The next prime is 90504833. The reversal of 90504825 is 52840509.

It is not a de Polignac number, because 90504825 - 2¹ = 90504823 is a prime.

It is a super-2 number, since 2×90504825² = 16382246696561250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (90504823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 603291 + ... + 603440.

It is an arithmetic number, because the mean of its divisors is an integer number (12469564).

Almost surely, 2^90504825 is an apocalyptic number.

It is an amenable number.

90504825 is a deficient number, since it is larger than the sum of its proper divisors (59129943).

90504825 is a wasteful number, since it uses less digits than its factorization.

90504825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206744 (or 1206739 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 90504825 is about 9513.4023882100. The cubic root of 90504825 is about 448.9768110867.

The spelling of 90504825 in words is "ninety million, five hundred four thousand, eight hundred twenty-five".