90766553 has 16 divisors (see below), whose sum is σ = 101888640. Its totient is φ = 80352000.

The previous prime is 90766547. The next prime is 90766601. The reversal of 90766553 is 35566709.

It is a cyclic number.

It is not a de Polignac number, because 90766553 - 2¹² = 90762457 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 90766553.

It is not an unprimeable number, because it can be changed into a prime (90765553) 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, 47843 + ... + 49703.

It is an arithmetic number, because the mean of its divisors is an integer number (6368040).

Almost surely, 2^90766553 is an apocalyptic number.

It is an amenable number.

90766553 is a deficient number, since it is larger than the sum of its proper divisors (11122087).

90766553 is a wasteful number, since it uses less digits than its factorization.

90766553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 90766553 is about 9527.1482091967. The cubic root of 90766553 is about 449.4091884404.

It can be divided in two parts, 90766 and 553, that added together give a palindrome (91319).

The spelling of 90766553 in words is "ninety million, seven hundred sixty-six thousand, five hundred fifty-three".