25322663231 has 4 divisors (see below), whose sum is σ = 26655435000. Its totient is φ = 23989891464.

The previous prime is 25322663221. The next prime is 25322663273. The reversal of 25322663231 is 13236622352.

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

It is a cyclic number.

It is not a de Polignac number, because 25322663231 - 2⁶ = 25322663167 is a prime.

It is a super-2 number, since 2×25322663231² (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 = 25322663191 and 25322663200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25322663221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666385856 + ... + 666385893.

It is an arithmetic number, because the mean of its divisors is an integer number (6663858750).

Almost surely, 2^25322663231 is an apocalyptic number.

25322663231 is a deficient number, since it is larger than the sum of its proper divisors (1332771769).

25322663231 is a wasteful number, since it uses less digits than its factorization.

25322663231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332771768.

The product of its digits is 77760, while the sum is 35.

The spelling of 25322663231 in words is "twenty-five billion, three hundred twenty-two million, six hundred sixty-three thousand, two hundred thirty-one".