2551510025 has 24 divisors (see below), whose sum is σ = 3458064384. Its totient is φ = 1859155200.

The previous prime is 2551510021. The next prime is 2551510043. The reversal of 2551510025 is 5200151552.

It is not a de Polignac number, because 2551510025 - 2² = 2551510021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2551509976 and 2551510003.

It is not an unprimeable number, because it can be changed into a prime (2551510021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83657 + ... + 110006.

It is an arithmetic number, because the mean of its divisors is an integer number (144086016).

Almost surely, 2^2551510025 is an apocalyptic number.

2551510025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551510025 is a deficient number, since it is larger than the sum of its proper divisors (906554359).

2551510025 is a wasteful number, since it uses less digits than its factorization.

2551510025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193721 (or 193716 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2551510025 is about 50512.4739544600. The cubic root of 2551510025 is about 1366.4668269834.

Adding to 2551510025 its reverse (5200151552), we get a palindrome (7751661577).

The spelling of 2551510025 in words is "two billion, five hundred fifty-one million, five hundred ten thousand, twenty-five".