25320012263 has 16 divisors (see below), whose sum is σ = 31180597056. Its totient is φ = 20022163200.

The previous prime is 25320012251. The next prime is 25320012269. The reversal of 25320012263 is 36221002352.

It is not a de Polignac number, because 25320012263 - 2⁴ = 25320012247 is a prime.

It is a super-2 number, since 2×25320012263² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320012269) 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, 86645 + ... + 241137.

It is an arithmetic number, because the mean of its divisors is an integer number (1948787316).

Almost surely, 2^25320012263 is an apocalyptic number.

25320012263 is a deficient number, since it is larger than the sum of its proper divisors (5860584793).

25320012263 is a wasteful number, since it uses less digits than its factorization.

25320012263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156314.

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 25320012263 in words is "twenty-five billion, three hundred twenty million, twelve thousand, two hundred sixty-three".