90518516 has 24 divisors (see below), whose sum is σ = 175002240. Its totient is φ = 40622400.

The previous prime is 90518513. The next prime is 90518531. The reversal of 90518516 is 61581509.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90518513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9545 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (7291760).

Almost surely, 2^90518516 is an apocalyptic number.

It is an amenable number.

90518516 is a deficient number, since it is larger than the sum of its proper divisors (84483724).

90518516 is a wasteful number, since it uses less digits than its factorization.

90518516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26135 (or 26133 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 90518516 is about 9514.1219248021. The cubic root of 90518516 is about 448.9994494068. Note that the first 3 decimals are identical.

The spelling of 90518516 in words is "ninety million, five hundred eighteen thousand, five hundred sixteen".