25255250025 has 24 divisors (see below), whose sum is σ = 42883874304. Its totient is φ = 13105425600.

The previous prime is 25255249993. The next prime is 25255250063. The reversal of 25255250025 is 52005255252.

It is not a de Polignac number, because 25255250025 - 2⁵ = 25255249993 is a prime.

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, 4547721 + ... + 4553270.

It is an arithmetic number, because the mean of its divisors is an integer number (1786828096).

Almost surely, 2^25255250025 is an apocalyptic number.

25255250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25255250025 is a deficient number, since it is larger than the sum of its proper divisors (17628624279).

25255250025 is a wasteful number, since it uses less digits than its factorization.

25255250025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101041 (or 9101036 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

The spelling of 25255250025 in words is "twenty-five billion, two hundred fifty-five million, two hundred fifty thousand, twenty-five".