90254902 has 16 divisors (see below), whose sum is σ = 147423600. Its totient is φ = 41277600.

The previous prime is 90254891. The next prime is 90254903. The reversal of 90254902 is 20945209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90254903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39849 + ... + 42052.

It is an arithmetic number, because the mean of its divisors is an integer number (9213975).

Almost surely, 2^90254902 is an apocalyptic number.

90254902 is a deficient number, since it is larger than the sum of its proper divisors (57168698).

90254902 is a wasteful number, since it uses less digits than its factorization.

90254902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81951.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90254902 is about 9500.2579964967. The cubic root of 90254902 is about 448.5631569832.

The spelling of 90254902 in words is "ninety million, two hundred fifty-four thousand, nine hundred two".