90558115 has 16 divisors (see below), whose sum is σ = 110874816. Its totient is φ = 70992000.

The previous prime is 90558113. The next prime is 90558119. The reversal of 90558115 is 51185509.

It is not a de Polignac number, because 90558115 - 2¹ = 90558113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90558113) 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, 51145 + ... + 52885.

It is an arithmetic number, because the mean of its divisors is an integer number (6929676).

Almost surely, 2^90558115 is an apocalyptic number.

90558115 is a deficient number, since it is larger than the sum of its proper divisors (20316701).

90558115 is a wasteful number, since it uses less digits than its factorization.

90558115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 90558115 is about 9516.2027616061. The cubic root of 90558115 is about 449.0649142343.

The spelling of 90558115 in words is "ninety million, five hundred fifty-eight thousand, one hundred fifteen".