90766555 has 8 divisors (see below), whose sum is σ = 118821744. Its totient is φ = 66012000.

The previous prime is 90766547. The next prime is 90766601. The reversal of 90766555 is 55566709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90766555 - 2³ = 90766547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825096 + ... + 825205.

It is an arithmetic number, because the mean of its divisors is an integer number (14852718).

Almost surely, 2^90766555 is an apocalyptic number.

90766555 is a deficient number, since it is larger than the sum of its proper divisors (28055189).

90766555 is a wasteful number, since it uses less digits than its factorization.

90766555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650317.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 90766555 is about 9527.1483141599. The cubic root of 90766555 is about 449.4091917412.

The spelling of 90766555 in words is "ninety million, seven hundred sixty-six thousand, five hundred fifty-five".