90051104 has 72 divisors (see below), whose sum is σ = 209977740. Its totient is φ = 37762560.

The previous prime is 90051097. The next prime is 90051109. The reversal of 90051104 is 40115009.

It can be written as a sum of positive squares in 2 ways, for example, as 89491600 + 559504 = 9460^2 + 748^2 .

It is not an unprimeable number, because it can be changed into a prime (90051109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49442 + ... + 51230.

Almost surely, 2^90051104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90051104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104988870).

90051104 is an abundant number, since it is smaller than the sum of its proper divisors (119926636).

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

90051104 is a wasteful number, since it uses less digits than its factorization.

90051104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 90051104 is about 9489.5260155605. The cubic root of 90051104 is about 448.2252799797.

The spelling of 90051104 in words is "ninety million, fifty-one thousand, one hundred four".