28255258075 has 24 divisors (see below), whose sum is σ = 39110550336. Its totient is φ = 20071380000.

The previous prime is 28255258067. The next prime is 28255258091. The reversal of 28255258075 is 57085255282.

It is not a de Polignac number, because 28255258075 - 2³ = 28255258067 is a prime.

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, 1182901 + ... + 1206550.

It is an arithmetic number, because the mean of its divisors is an integer number (1629606264).

Almost surely, 2^28255258075 is an apocalyptic number.

28255258075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28255258075 is a deficient number, since it is larger than the sum of its proper divisors (10855292261).

28255258075 is a wasteful number, since it uses less digits than its factorization.

28255258075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389515 (or 2389510 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 49.

The spelling of 28255258075 in words is "twenty-eight billion, two hundred fifty-five million, two hundred fifty-eight thousand, seventy-five".