90555723 has 6 divisors (see below), whose sum is σ = 130802724. Its totient is φ = 60370476.

The previous prime is 90555713. The next prime is 90555727. The reversal of 90555723 is 32755509.

It is not a de Polignac number, because 90555723 - 2¹⁶ = 90490187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90555727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5030865 + ... + 5030882.

It is an arithmetic number, because the mean of its divisors is an integer number (21800454).

Almost surely, 2^90555723 is an apocalyptic number.

90555723 is a deficient number, since it is larger than the sum of its proper divisors (40247001).

90555723 is a wasteful number, since it uses less digits than its factorization.

90555723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061753 (or 10061750 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 90555723 is about 9516.0770803940. The cubic root of 90555723 is about 449.0609603360.

The spelling of 90555723 in words is "ninety million, five hundred fifty-five thousand, seven hundred twenty-three".