5581111250 has 80 divisors (see below), whose sum is σ = 12290515776. Its totient is φ = 1873320000.

The previous prime is 5581111187. The next prime is 5581111309. The reversal of 5581111250 is 521111855.

It is a super-2 number, since 2×5581111250² = 62297605569753125000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 163139 + ... + 194361.

Almost surely, 2^5581111250 is an apocalyptic number.

5581111250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5581111250 is an abundant number, since it is smaller than the sum of its proper divisors (6709404526).

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

5581111250 is a wasteful number, since it uses less digits than its factorization.

5581111250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31269 (or 31254 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 29.

The square root of 5581111250 is about 74706.8353633053. The cubic root of 5581111250 is about 1773.8091595902.

The spelling of 5581111250 in words is "five billion, five hundred eighty-one million, one hundred eleven thousand, two hundred fifty".