90222055 has 16 divisors (see below), whose sum is σ = 134982144. Its totient is φ = 56242080.

The previous prime is 90222053. The next prime is 90222061. The reversal of 90222055 is 55022209.

It is not a de Polignac number, because 90222055 - 2¹ = 90222053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90222053) 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, 116787 + ... + 117556.

It is an arithmetic number, because the mean of its divisors is an integer number (8436384).

Almost surely, 2^90222055 is an apocalyptic number.

90222055 is a deficient number, since it is larger than the sum of its proper divisors (44760089).

90222055 is a wasteful number, since it uses less digits than its factorization.

90222055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234366.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 90222055 is about 9498.5290966549. The cubic root of 90222055 is about 448.5087343001.

The spelling of 90222055 in words is "ninety million, two hundred twenty-two thousand, fifty-five".