90007755 has 16 divisors (see below), whose sum is σ = 145499424. Its totient is φ = 47508480.

The previous prime is 90007721. The next prime is 90007817. The reversal of 90007755 is 55770009.

It is not a de Polignac number, because 90007755 - 2⁶ = 90007691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29476 + ... + 32385.

It is an arithmetic number, because the mean of its divisors is an integer number (9093714).

Almost surely, 2^90007755 is an apocalyptic number.

90007755 is a deficient number, since it is larger than the sum of its proper divisors (55491669).

90007755 is a wasteful number, since it uses less digits than its factorization.

90007755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61966.

The product of its (nonzero) digits is 11025, while the sum is 33.

The square root of 90007755 is about 9487.2416960885. The cubic root of 90007755 is about 448.1533458763.

The spelling of 90007755 in words is "ninety million, seven thousand, seven hundred fifty-five".