28088560525 has 24 divisors (see below), whose sum is σ = 35110843040. Its totient is φ = 22289826240.

The previous prime is 28088560499. The next prime is 28088560541. The reversal of 28088560525 is 52506588082.

It is not a de Polignac number, because 28088560525 - 2³³ = 19498625933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5046394 + ... + 5051956.

Almost surely, 2^28088560525 is an apocalyptic number.

28088560525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28088560525 is a deficient number, since it is larger than the sum of its proper divisors (7022282515).

28088560525 is a wasteful number, since it uses less digits than its factorization.

28088560525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165 (or 7160 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 49.

The spelling of 28088560525 in words is "twenty-eight billion, eighty-eight million, five hundred sixty thousand, five hundred twenty-five".