2551005225 has 24 divisors (see below), whose sum is σ = 4686292320. Its totient is φ = 1360535760.

The previous prime is 2551005203. The next prime is 2551005239. The reversal of 2551005225 is 5225001552.

It is not a de Polignac number, because 2551005225 - 2⁶ = 2551005161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1888959 + ... + 1890308.

It is an arithmetic number, because the mean of its divisors is an integer number (195262180).

Almost surely, 2^2551005225 is an apocalyptic number.

2551005225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551005225 is a deficient number, since it is larger than the sum of its proper divisors (2135287095).

2551005225 is a wasteful number, since it uses less digits than its factorization.

2551005225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779286 (or 3779275 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2551005225 is about 50507.4769217390. The cubic root of 2551005225 is about 1366.3767054549.

Adding to 2551005225 its reverse (5225001552), we get a palindrome (7776006777).

The spelling of 2551005225 in words is "two billion, five hundred fifty-one million, five thousand, two hundred twenty-five".