25325224431 has 48 divisors (see below), whose sum is σ = 38631680640. Its totient is φ = 14709651840.

The previous prime is 25325224423. The next prime is 25325224439. The reversal of 25325224431 is 13442252352.

It is an interprime number because it is at equal distance from previous prime (25325224423) and next prime (25325224439).

It is not a de Polignac number, because 25325224431 - 2³ = 25325224423 is a prime.

It is a super-2 number, since 2×25325224431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25325224392 and 25325224401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325224439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2663596 + ... + 2673086.

It is an arithmetic number, because the mean of its divisors is an integer number (804826680).

Almost surely, 2^25325224431 is an apocalyptic number.

25325224431 is a deficient number, since it is larger than the sum of its proper divisors (13306456209).

25325224431 is a wasteful number, since it uses less digits than its factorization.

25325224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9816 (or 9803 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

Adding to 25325224431 its reverse (13442252352), we get a palindrome (38767476783).

The spelling of 25325224431 in words is "twenty-five billion, three hundred twenty-five million, two hundred twenty-four thousand, four hundred thirty-one".