2551210120 has 64 divisors (see below), whose sum is σ = 5865067440. Its totient is φ = 998400000.

The previous prime is 2551210061. The next prime is 2551210147. The reversal of 2551210120 is 210121552.

It can be written as a sum of positive squares in 8 ways, for example, as 2199797604 + 351412516 = 46902^2 + 18746^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848620 + ... + 851620.

Almost surely, 2^2551210120 is an apocalyptic number.

2551210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2932533720).

2551210120 is an abundant number, since it is smaller than the sum of its proper divisors (3313857320).

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

2551210120 is a wasteful number, since it uses less digits than its factorization.

2551210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 2551210120 is about 50509.5052440627. The cubic root of 2551210120 is about 1366.4132866240.

Adding to 2551210120 its reverse (210121552), we get a palindrome (2761331672).

The spelling of 2551210120 in words is "two billion, five hundred fifty-one million, two hundred ten thousand, one hundred twenty".