25279261055 has 8 divisors (see below), whose sum is σ = 30345770544. Its totient is φ = 20216304000.

The previous prime is 25279261043. The next prime is 25279261067. The reversal of 25279261055 is 55016297252.

It is an interprime number because it is at equal distance from previous prime (25279261043) and next prime (25279261067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25279261055 - 2¹⁸ = 25278998911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25279260997 and 25279261015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872426 + ... + 900935.

It is an arithmetic number, because the mean of its divisors is an integer number (3793221318).

Almost surely, 2^25279261055 is an apocalyptic number.

25279261055 is a deficient number, since it is larger than the sum of its proper divisors (5066509489).

25279261055 is a wasteful number, since it uses less digits than its factorization.

25279261055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776217.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 25279261055 in words is "twenty-five billion, two hundred seventy-nine million, two hundred sixty-one thousand, fifty-five".