25310125140 has 48 divisors (see below), whose sum is σ = 70936084800. Its totient is φ = 6742915840.

The previous prime is 25310125091. The next prime is 25310125151. The reversal of 25310125140 is 4152101352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25310125140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138126 + ... + 264005.

It is an arithmetic number, because the mean of its divisors is an integer number (1477835100).

Almost surely, 2^25310125140 is an apocalyptic number.

25310125140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25310125140 is an abundant number, since it is smaller than the sum of its proper divisors (45625959660).

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

25310125140 is a wasteful number, since it uses less digits than its factorization.

25310125140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403192 (or 403190 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 25310125140 its reverse (4152101352), we get a palindrome (29462226492).

The spelling of 25310125140 in words is "twenty-five billion, three hundred ten million, one hundred twenty-five thousand, one hundred forty".