25025304140 has 12 divisors (see below), whose sum is σ = 52553138736. Its totient is φ = 10010121648.

The previous prime is 25025304119. The next prime is 25025304181. The reversal of 25025304140 is 4140352052.

It is a happy number.

It is a super-2 number, since 2×25025304140² (a number of 22 digits) contains 22 as substring.

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, 625632584 + ... + 625632623.

It is an arithmetic number, because the mean of its divisors is an integer number (4379428228).

Almost surely, 2^25025304140 is an apocalyptic number.

25025304140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25025304140 is an abundant number, since it is smaller than the sum of its proper divisors (27527834596).

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

25025304140 is a wasteful number, since it uses less digits than its factorization.

25025304140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251265216 (or 1251265214 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 25025304140 its reverse (4140352052), we get a palindrome (29165656192).

The spelling of 25025304140 in words is "twenty-five billion, twenty-five million, three hundred four thousand, one hundred forty".