25245764328 has 32 divisors (see below), whose sum is σ = 64305252000. Its totient is φ = 8256475968.

The previous prime is 25245764281. The next prime is 25245764339. The reversal of 25245764328 is 82346754252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9922378 + ... + 9924921.

It is an arithmetic number, because the mean of its divisors is an integer number (2009539125).

Almost surely, 2^25245764328 is an apocalyptic number.

It is an amenable number.

25245764328 is an abundant number, since it is smaller than the sum of its proper divisors (39059487672).

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

25245764328 is a wasteful number, since it uses less digits than its factorization.

25245764328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847361 (or 19847357 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 48.

The spelling of 25245764328 in words is "twenty-five billion, two hundred forty-five million, seven hundred sixty-four thousand, three hundred twenty-eight".