25297613448 has 16 divisors (see below), whose sum is σ = 63244033680. Its totient is φ = 8432537808.

The previous prime is 25297613447. The next prime is 25297613459. The reversal of 25297613448 is 84431679252.

It is a self number, because there is not a number n which added to its sum of digits gives 25297613448.

It is not an unprimeable number, because it can be changed into a prime (25297613447) 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 3 ways as a sum of consecutive naturals, for example, 527033590 + ... + 527033637.

It is an arithmetic number, because the mean of its divisors is an integer number (3952752105).

Almost surely, 2^25297613448 is an apocalyptic number.

It is an amenable number.

25297613448 is an abundant number, since it is smaller than the sum of its proper divisors (37946420232).

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

25297613448 is a wasteful number, since it uses less digits than its factorization.

25297613448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054067236 (or 1054067232 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 25297613448 in words is "twenty-five billion, two hundred ninety-seven million, six hundred thirteen thousand, four hundred forty-eight".