2551001100 has 36 divisors (see below), whose sum is σ = 7380897384. Its totient is φ = 680266880.

The previous prime is 2551001071. The next prime is 2551001107. The reversal of 2551001100 is 11001552.

It is a super-2 number, since 2×2551001100² = 13015213224402420000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2551001100.

It is not an unprimeable number, because it can be changed into a prime (2551001107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4251369 + ... + 4251968.

Almost surely, 2^2551001100 is an apocalyptic number.

2551001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551001100 is an abundant number, since it is smaller than the sum of its proper divisors (4829896284).

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

2551001100 is a wasteful number, since it uses less digits than its factorization.

2551001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503354 (or 8503347 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2551001100 is about 50507.4360861844. The cubic root of 2551001100 is about 1366.3759689731.

Adding to 2551001100 its reverse (11001552), we get a palindrome (2562002652).

The spelling of 2551001100 in words is "two billion, five hundred fifty-one million, one thousand, one hundred".