25253099448 has 48 divisors (see below), whose sum is σ = 63393190680. Its totient is φ = 8383007616.

The previous prime is 25253099423. The next prime is 25253099449. The reversal of 25253099448 is 84499035252.

It is a self number, because there is not a number n which added to its sum of digits gives 25253099448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25253099449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12955978 + ... + 12957926.

Almost surely, 2^25253099448 is an apocalyptic number.

It is an amenable number.

25253099448 is an abundant number, since it is smaller than the sum of its proper divisors (38140091232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25253099448 is an equidigital number, since it uses as much as digits as its factorization.

25253099448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 25253099448 in words is "twenty-five billion, two hundred fifty-three million, ninety-nine thousand, four hundred forty-eight".