25928963155 has 4 divisors (see below), whose sum is σ = 31114755792. Its totient is φ = 20743170520.

The previous prime is 25928963143. The next prime is 25928963161. The reversal of 25928963155 is 55136982952.

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

It is not a de Polignac number, because 25928963155 - 2³¹ = 23781479507 is a prime.

It is a super-2 number, since 2×25928963155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25928963096 and 25928963105.

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, 2592896311 + ... + 2592896320.

It is an arithmetic number, because the mean of its divisors is an integer number (7778688948).

Almost surely, 2^25928963155 is an apocalyptic number.

25928963155 is a deficient number, since it is larger than the sum of its proper divisors (5185792637).

25928963155 is an equidigital number, since it uses as much as digits as its factorization.

25928963155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185792636.

The product of its digits is 5832000, while the sum is 55.

The spelling of 25928963155 in words is "twenty-five billion, nine hundred twenty-eight million, nine hundred sixty-three thousand, one hundred fifty-five".