90061055 has 16 divisors (see below), whose sum is σ = 123921984. Its totient is φ = 61551360.

The previous prime is 90061039. The next prime is 90061057. The reversal of 90061055 is 55016009.

It is not a de Polignac number, because 90061055 - 2⁴ = 90061039 is a prime.

It is a super-2 number, since 2×90061055² = 16221987255426050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90061057) 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, 6845 + ... + 15065.

It is an arithmetic number, because the mean of its divisors is an integer number (7745124).

Almost surely, 2^90061055 is an apocalyptic number.

90061055 is a deficient number, since it is larger than the sum of its proper divisors (33860929).

90061055 is a wasteful number, since it uses less digits than its factorization.

90061055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8546.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 90061055 is about 9490.0503159888. The cubic root of 90061055 is about 448.2417895884.

The spelling of 90061055 in words is "ninety million, sixty-one thousand, fifty-five".