25253099425 has 24 divisors (see below), whose sum is σ = 31630805856. Its totient is φ = 19998282240.

The previous prime is 25253099423. The next prime is 25253099449. The reversal of 25253099425 is 52499035252.

It is not a de Polignac number, because 25253099425 - 2¹ = 25253099423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25253099423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4536694 + ... + 4542256.

It is an arithmetic number, because the mean of its divisors is an integer number (1317950244).

Almost surely, 2^25253099425 is an apocalyptic number.

25253099425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25253099425 is a deficient number, since it is larger than the sum of its proper divisors (6377706431).

25253099425 is a wasteful number, since it uses less digits than its factorization.

25253099425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377 (or 7372 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 25253099425 in words is "twenty-five billion, two hundred fifty-three million, ninety-nine thousand, four hundred twenty-five".