25240312344 has 128 divisors (see below), whose sum is σ = 71779276800. Its totient is φ = 7340820480.

The previous prime is 25240312289. The next prime is 25240312351. The reversal of 25240312344 is 44321304252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385552 + ... + 446240.

It is an arithmetic number, because the mean of its divisors is an integer number (560775600).

Almost surely, 2^25240312344 is an apocalyptic number.

25240312344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25240312344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35889638400).

25240312344 is an abundant number, since it is smaller than the sum of its proper divisors (46538964456).

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

25240312344 is a wasteful number, since it uses less digits than its factorization.

25240312344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60785 (or 60781 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 25240312344 its reverse (44321304252), we get a palindrome (69561616596).

The spelling of 25240312344 in words is "twenty-five billion, two hundred forty million, three hundred twelve thousand, three hundred forty-four".