2501281225 has 12 divisors (see below), whose sum is σ = 3113390016. Its totient is φ = 1993411280.

The previous prime is 2501281207. The next prime is 2501281243. The reversal of 2501281225 is 5221821052.

It is an interprime number because it is at equal distance from previous prime (2501281207) and next prime (2501281243).

It is not a de Polignac number, because 2501281225 - 2⁵ = 2501281193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2501281193 and 2501281202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183637 + ... + 196786.

It is an arithmetic number, because the mean of its divisors is an integer number (259449168).

Almost surely, 2^2501281225 is an apocalyptic number.

2501281225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2501281225 is a deficient number, since it is larger than the sum of its proper divisors (612108791).

2501281225 is a wasteful number, since it uses less digits than its factorization.

2501281225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380696 (or 380691 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 2501281225 is about 50012.8106088830. The cubic root of 2501281225 is about 1357.4406206822.

The spelling of 2501281225 in words is "two billion, five hundred one million, two hundred eighty-one thousand, two hundred twenty-five".