90551763 has 24 divisors (see below), whose sum is σ = 136421376. Its totient is φ = 60021000.

The previous prime is 90551753. The next prime is 90551779. The reversal of 90551763 is 36715509.

It is a happy number.

It is not a de Polignac number, because 90551763 - 2¹⁰ = 90550739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90551723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45438 + ... + 47388.

It is an arithmetic number, because the mean of its divisors is an integer number (5684224).

Almost surely, 2^90551763 is an apocalyptic number.

90551763 is a deficient number, since it is larger than the sum of its proper divisors (45869613).

90551763 is a wasteful number, since it uses less digits than its factorization.

90551763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 90551763 is about 9515.8690091867. The cubic root of 90551763 is about 449.0544144316.

The spelling of 90551763 in words is "ninety million, five hundred fifty-one thousand, seven hundred sixty-three".