25528000255 has 4 divisors (see below), whose sum is σ = 30633600312. Its totient is φ = 20422400200.

The previous prime is 25528000231. The next prime is 25528000301. The reversal of 25528000255 is 55200082552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25528000255 - 2²³ = 25519611647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25528000255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552800021 + ... + 2552800030.

It is an arithmetic number, because the mean of its divisors is an integer number (7658400078).

Almost surely, 2^25528000255 is an apocalyptic number.

25528000255 is a deficient number, since it is larger than the sum of its proper divisors (5105600057).

25528000255 is an equidigital number, since it uses as much as digits as its factorization.

25528000255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105600056.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 25528000255 in words is "twenty-five billion, five hundred twenty-eight million, two hundred fifty-five", and thus it is an aban number.