900550500555 has 32 divisors (see below), whose sum is σ = 1476715161600. Its totient is φ = 468359781120.

The previous prime is 900550500539. The next prime is 900550500581. The reversal of 900550500555 is 555005055009.

It is not a de Polignac number, because 900550500555 - 2⁴ = 900550500539 is a prime.

It is a super-2 number, since 2×900550500555² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976296 + ... + 1659594.

It is an arithmetic number, because the mean of its divisors is an integer number (46147348800).

Almost surely, 2^900550500555 is an apocalyptic number.

900550500555 is a deficient number, since it is larger than the sum of its proper divisors (576164661045).

900550500555 is a wasteful number, since it uses less digits than its factorization.

900550500555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685491.

The product of its (nonzero) digits is 140625, while the sum is 39.

The spelling of 900550500555 in words is "nine hundred billion, five hundred fifty million, five hundred thousand, five hundred fifty-five".