25050002728 has 16 divisors (see below), whose sum is σ = 46973021760. Its totient is φ = 12523863600.

The previous prime is 25050002723. The next prime is 25050002759. The reversal of 25050002728 is 82720005052.

It is a self number, because there is not a number n which added to its sum of digits gives 25050002728.

It is not an unprimeable number, because it can be changed into a prime (25050002723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44718 + ... + 228253.

It is an arithmetic number, because the mean of its divisors is an integer number (2935813860).

Almost surely, 2^25050002728 is an apocalyptic number.

It is an amenable number.

25050002728 is a deficient number, since it is larger than the sum of its proper divisors (21923019032).

25050002728 is a wasteful number, since it uses less digits than its factorization.

25050002728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284448 (or 284444 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 25050002728 in words is "twenty-five billion, fifty million, two thousand, seven hundred twenty-eight".