25280025050 has 24 divisors (see below), whose sum is σ = 53738111136. Its totient is φ = 8667437040.

The previous prime is 25280025019. The next prime is 25280025097. The reversal of 25280025050 is 5052008252.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 36113972 + ... + 36114671.

It is an arithmetic number, because the mean of its divisors is an integer number (2239087964).

Almost surely, 2^25280025050 is an apocalyptic number.

25280025050 is an abundant number, since it is smaller than the sum of its proper divisors (28458086086).

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

25280025050 is a wasteful number, since it uses less digits than its factorization.

25280025050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72228662 (or 72228657 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25280025050 in words is "twenty-five billion, two hundred eighty million, twenty-five thousand, fifty".