25252430012 has 24 divisors (see below), whose sum is σ = 44480741760. Its totient is φ = 12543781040.

The previous prime is 25252430009. The next prime is 25252430023. The reversal of 25252430012 is 21003425252.

It is a congruent number.

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, 764993 + ... + 797319.

It is an arithmetic number, because the mean of its divisors is an integer number (1853364240).

Almost surely, 2^25252430012 is an apocalyptic number.

It is an amenable number.

25252430012 is a deficient number, since it is larger than the sum of its proper divisors (19228311748).

25252430012 is a wasteful number, since it uses less digits than its factorization.

25252430012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33601 (or 33599 counting only the distinct ones).

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

Adding to 25252430012 its reverse (21003425252), we get a palindrome (46255855264).

The spelling of 25252430012 in words is "twenty-five billion, two hundred fifty-two million, four hundred thirty thousand, twelve".