28625261255 has 4 divisors (see below), whose sum is σ = 34350313512. Its totient is φ = 22900209000.

The previous prime is 28625261153. The next prime is 28625261267. The reversal of 28625261255 is 55216252682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55216252682 = 2 ⋅27608126341.

It is not a de Polignac number, because 28625261255 - 2¹² = 28625257159 is a prime.

It is a Duffinian number.

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, 2862526121 + ... + 2862526130.

It is an arithmetic number, because the mean of its divisors is an integer number (8587578378).

Almost surely, 2^28625261255 is an apocalyptic number.

28625261255 is a deficient number, since it is larger than the sum of its proper divisors (5725052257).

28625261255 is an equidigital number, since it uses as much as digits as its factorization.

28625261255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725052256.

The product of its digits is 576000, while the sum is 44.

The spelling of 28625261255 in words is "twenty-eight billion, six hundred twenty-five million, two hundred sixty-one thousand, two hundred fifty-five".