90055122 has 32 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 29085840.

The previous prime is 90055111. The next prime is 90055139. The reversal of 90055122 is 22155009.

It is a junction number, because it is equal to n+sod(n) for n = 90055092 and 90055101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23343 + ... + 26925.

It is an arithmetic number, because the mean of its divisors is an integer number (5806080).

Almost surely, 2^90055122 is an apocalyptic number.

90055122 is an abundant number, since it is smaller than the sum of its proper divisors (95739438).

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

90055122 is a wasteful number, since it uses less digits than its factorization.

90055122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 90055122 is about 9489.7377202955. The cubic root of 90055122 is about 448.2319463514.

The spelling of 90055122 in words is "ninety million, fifty-five thousand, one hundred twenty-two".