2555551100 has 36 divisors (see below), whose sum is σ = 5563331424. Its totient is φ = 1018942080.

The previous prime is 2555551099. The next prime is 2555551121. The reversal of 2555551100 is 11555552.

2555551100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2555551100² = 13061682849422420000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9524 + ... + 72123.

It is an arithmetic number, because the mean of its divisors is an integer number (154536984).

Almost surely, 2^2555551100 is an apocalyptic number.

2555551100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555551100 is an abundant number, since it is smaller than the sum of its proper divisors (3007780324).

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

2555551100 is a wasteful number, since it uses less digits than its factorization.

2555551100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81974 (or 81967 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 2555551100 is about 50552.4588917295. The cubic root of 2555551100 is about 1367.1878486791.

The spelling of 2555551100 in words is "two billion, five hundred fifty-five million, five hundred fifty-one thousand, one hundred".