28025002508 has 24 divisors (see below), whose sum is σ = 51910251120. Its totient is φ = 13201652160.

The previous prime is 28025002501. The next prime is 28025002517. The reversal of 28025002508 is 80520052082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28025002501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004891 + ... + 1032402.

It is an arithmetic number, because the mean of its divisors is an integer number (2162927130).

Almost surely, 2^28025002508 is an apocalyptic number.

It is an amenable number.

28025002508 is a deficient number, since it is larger than the sum of its proper divisors (23885248612).

28025002508 is a wasteful number, since it uses less digits than its factorization.

28025002508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037497 (or 2037495 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 28025002508 in words is "twenty-eight billion, twenty-five million, two thousand, five hundred eight".