90080550 has 72 divisors (see below), whose sum is σ = 276599856. Its totient is φ = 20589120.

The previous prime is 90080537. The next prime is 90080593. The reversal of 90080550 is 5508009.

It is a super-2 number, since 2×90080550² = 16229010976605000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11149 + ... + 17448.

Almost surely, 2^90080550 is an apocalyptic number.

90080550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90080550 is an abundant number, since it is smaller than the sum of its proper divisors (186519306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90080550 is a wasteful number, since it uses less digits than its factorization.

90080550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28622 (or 28614 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 90080550 is about 9491.0773887900. The cubic root of 90080550 is about 448.2741300314.

Adding to 90080550 its reverse (5508009), we get a palindrome (95588559).

The spelling of 90080550 in words is "ninety million, eighty thousand, five hundred fifty".