2551100000 has 144 divisors (see below), whose sum is σ = 6366530016. Its totient is φ = 1006080000.

The previous prime is 2551099987. The next prime is 2551100017. The reversal of 2551100000 is 11552.

It is a super-2 number, since 2×2551100000² = 13016222420000000000, 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 23 ways as a sum of consecutive naturals, for example, 9699869 + ... + 9700131.

It is an arithmetic number, because the mean of its divisors is an integer number (44212014).

Almost surely, 2^2551100000 is an apocalyptic number.

2551100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3183265008).

2551100000 is an abundant number, since it is smaller than the sum of its proper divisors (3815430016).

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

2551100000 is an frugal number, since it uses more digits than its factorization.

2551100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2551100000 is about 50508.4151404496. The cubic root of 2551100000 is about 1366.3936264641.

Adding to 2551100000 its reverse (11552), we get a palindrome (2551111552).

The spelling of 2551100000 in words is "two billion, five hundred fifty-one million, one hundred thousand".