25353304140 has 24 divisors (see below), whose sum is σ = 70989251760. Its totient is φ = 6760881088.

The previous prime is 25353304139. The next prime is 25353304187. The reversal of 25353304140 is 4140335352.

It is a super-2 number, since 2×25353304140² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25353304098 and 25353304107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211277475 + ... + 211277594.

It is an arithmetic number, because the mean of its divisors is an integer number (2957885490).

Almost surely, 2^25353304140 is an apocalyptic number.

25353304140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25353304140 is an abundant number, since it is smaller than the sum of its proper divisors (45635947620).

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

25353304140 is a wasteful number, since it uses less digits than its factorization.

25353304140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422555081 (or 422555079 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 25353304140 its reverse (4140335352), we get a palindrome (29493639492).

The spelling of 25353304140 in words is "twenty-five billion, three hundred fifty-three million, three hundred four thousand, one hundred forty".