2551312330 has 32 divisors (see below), whose sum is σ = 5376430080. Its totient is φ = 853399680.

The previous prime is 2551312303. The next prime is 2551312331. The reversal of 2551312330 is 332131552.

2551312330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2551312295 and 2551312304.

It is not an unprimeable number, because it can be changed into a prime (2551312331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441610 + ... + 447349.

It is an arithmetic number, because the mean of its divisors is an integer number (168013440).

Almost surely, 2^2551312330 is an apocalyptic number.

2551312330 is an abundant number, since it is smaller than the sum of its proper divisors (2825117750).

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

2551312330 is a wasteful number, since it uses less digits than its factorization.

2551312330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889014.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2551312330 is about 50510.5170236853. The cubic root of 2551312330 is about 1366.4315340739.

Adding to 2551312330 its reverse (332131552), we get a palindrome (2883443882).

The spelling of 2551312330 in words is "two billion, five hundred fifty-one million, three hundred twelve thousand, three hundred thirty".