25326224436 has 48 divisors (see below), whose sum is σ = 64728296640. Its totient is φ = 7671498240.

The previous prime is 25326224389. The next prime is 25326224449. The reversal of 25326224436 is 63442262352.

It is a junction number, because it is equal to n+sod(n) for n = 25326224394 and 25326224403.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2134570 + ... + 2146401.

It is an arithmetic number, because the mean of its divisors is an integer number (1348506180).

Almost surely, 2^25326224436 is an apocalyptic number.

It is an amenable number.

25326224436 is an abundant number, since it is smaller than the sum of its proper divisors (39402072204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25326224436 is a wasteful number, since it uses less digits than its factorization.

25326224436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281024 (or 4281022 counting only the distinct ones).

The product of its digits is 414720, while the sum is 39.

Adding to 25326224436 its reverse (63442262352), we get a palindrome (88768486788).

The spelling of 25326224436 in words is "twenty-five billion, three hundred twenty-six million, two hundred twenty-four thousand, four hundred thirty-six".