2551401312 has 24 divisors (see below), whose sum is σ = 6697428696. Its totient is φ = 850467072.

The previous prime is 2551401289. The next prime is 2551401313. The reversal of 2551401312 is 2131041552.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551401313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13288453 + ... + 13288644.

It is an arithmetic number, because the mean of its divisors is an integer number (279059529).

Almost surely, 2^2551401312 is an apocalyptic number.

It is an amenable number.

2551401312 is an abundant number, since it is smaller than the sum of its proper divisors (4146027384).

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

2551401312 is a wasteful number, since it uses less digits than its factorization.

2551401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577110 (or 26577102 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2551401312 is about 50511.3978424672. The cubic root of 2551401312 is about 1366.4474195453.

Adding to 2551401312 its reverse (2131041552), we get a palindrome (4682442864).

The spelling of 2551401312 in words is "two billion, five hundred fifty-one million, four hundred one thousand, three hundred twelve".