2551400250 has 128 divisors (see below), whose sum is σ = 7306371072. Its totient is φ = 580910400.

The previous prime is 2551400221. The next prime is 2551400261. The reversal of 2551400250 is 520041552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2551400250.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1610959 + ... + 1612541.

It is an arithmetic number, because the mean of its divisors is an integer number (57081024).

Almost surely, 2^2551400250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551400250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3653185536).

2551400250 is an abundant number, since it is smaller than the sum of its proper divisors (4754970822).

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

2551400250 is a wasteful number, since it uses less digits than its factorization.

2551400250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2551400250 is about 50511.3873299873. The cubic root of 2551400250 is about 1366.4472299544.

The spelling of 2551400250 in words is "two billion, five hundred fifty-one million, four hundred thousand, two hundred fifty".