25326024440 has 32 divisors (see below), whose sum is σ = 56990468160. Its totient is φ = 10129180800.

The previous prime is 25326024413. The next prime is 25326024443. The reversal of 25326024440 is 4442062352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25326024397 and 25326024406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25326024443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341930 + ... + 409350.

It is an arithmetic number, because the mean of its divisors is an integer number (1780952130).

Almost surely, 2^25326024440 is an apocalyptic number.

25326024440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25326024440 is an abundant number, since it is smaller than the sum of its proper divisors (31664443720).

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

25326024440 is a wasteful number, since it uses less digits than its factorization.

25326024440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76823 (or 76819 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 25326024440 its reverse (4442062352), we get a palindrome (29768086792).

The spelling of 25326024440 in words is "twenty-five billion, three hundred twenty-six million, twenty-four thousand, four hundred forty".