2551400551 has 12 divisors (see below), whose sum is σ = 2968978152. Its totient is φ = 2186161488.

The previous prime is 2551400539. The next prime is 2551400567. The reversal of 2551400551 is 1550041552.

It is a de Polignac number, because none of the positive numbers 2^k-2551400551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551400531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171361 + ... + 185653.

It is an arithmetic number, because the mean of its divisors is an integer number (247414846).

Almost surely, 2^2551400551 is an apocalyptic number.

2551400551 is a deficient number, since it is larger than the sum of its proper divisors (417577601).

2551400551 is a wasteful number, since it uses less digits than its factorization.

2551400551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17950 (or 17943 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2551400551 is about 50511.3903095134. The cubic root of 2551400551 is about 1366.4472836897.

The spelling of 2551400551 in words is "two billion, five hundred fifty-one million, four hundred thousand, five hundred fifty-one".