28080080025 has 12 divisors (see below), whose sum is σ = 46425732432. Its totient is φ = 14976042640.

The previous prime is 28080079967. The next prime is 28080080027. The reversal of 28080080025 is 52008008082.

It is not a de Polignac number, because 28080080025 - 2²⁸ = 27811644569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28080080027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187200459 + ... + 187200608.

It is an arithmetic number, because the mean of its divisors is an integer number (3868811036).

Almost surely, 2^28080080025 is an apocalyptic number.

28080080025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28080080025 is a deficient number, since it is larger than the sum of its proper divisors (18345652407).

28080080025 is a wasteful number, since it uses less digits than its factorization.

28080080025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374401080 (or 374401075 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

It can be divided in two parts, 280800 and 80025, that added together give a triangular number (360825 = T₈₄₉).

The spelling of 28080080025 in words is "twenty-eight billion, eighty million, eighty thousand, twenty-five".