25325212340 has 12 divisors (see below), whose sum is σ = 53182945956. Its totient is φ = 10130084928.

The previous prime is 25325212321. The next prime is 25325212373. The reversal of 25325212340 is 4321252352.

It can be written as a sum of positive squares in 2 ways, for example, as 12949984804 + 12375227536 = 113798^2 + 111244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633130289 + ... + 633130328.

It is an arithmetic number, because the mean of its divisors is an integer number (4431912163).

Almost surely, 2^25325212340 is an apocalyptic number.

25325212340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25325212340 is an abundant number, since it is smaller than the sum of its proper divisors (27857733616).

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

25325212340 is a wasteful number, since it uses less digits than its factorization.

25325212340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266260626 (or 1266260624 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 25325212340 its reverse (4321252352), we get a palindrome (29646464692).

The spelling of 25325212340 in words is "twenty-five billion, three hundred twenty-five million, two hundred twelve thousand, three hundred forty".