90554502 has 16 divisors (see below), whose sum is σ = 181923840. Its totient is φ = 30049032.

The previous prime is 90554467. The next prime is 90554507. The reversal of 90554502 is 20545509.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90554502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90554507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32502 + ... + 35177.

It is an arithmetic number, because the mean of its divisors is an integer number (11370240).

Almost surely, 2^90554502 is an apocalyptic number.

90554502 is an abundant number, since it is smaller than the sum of its proper divisors (91369338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90554502 is a wasteful number, since it uses less digits than its factorization.

90554502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67907.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 90554502 is about 9516.0129255902. The cubic root of 90554502 is about 449.0589420358.

The spelling of 90554502 in words is "ninety million, five hundred fifty-four thousand, five hundred two".