25320307255 has 16 divisors (see below), whose sum is σ = 31476181248. Its totient is φ = 19533024000.

The previous prime is 25320307253. The next prime is 25320307261. The reversal of 25320307255 is 55270302352.

It is not a de Polignac number, because 25320307255 - 2¹ = 25320307253 is a prime.

It is a super-2 number, since 2×25320307255² (a number of 22 digits) contains 22 as substring.

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 25320307255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320307253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247116 + ... + 334225.

It is an arithmetic number, because the mean of its divisors is an integer number (1967261328).

Almost surely, 2^25320307255 is an apocalyptic number.

25320307255 is a deficient number, since it is larger than the sum of its proper divisors (6155873993).

25320307255 is a wasteful number, since it uses less digits than its factorization.

25320307255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581658.

The product of its (nonzero) digits is 63000, while the sum is 34.

The spelling of 25320307255 in words is "twenty-five billion, three hundred twenty million, three hundred seven thousand, two hundred fifty-five".