25145501212 has 36 divisors (see below), whose sum is σ = 47669002416. Its totient is φ = 11600983680.

The previous prime is 25145501149. The next prime is 25145501239. The reversal of 25145501212 is 21210554152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2151288 + ... + 2162944.

It is an arithmetic number, because the mean of its divisors is an integer number (1324138956).

Almost surely, 2^25145501212 is an apocalyptic number.

It is an amenable number.

25145501212 is a deficient number, since it is larger than the sum of its proper divisors (22523501204).

25145501212 is a wasteful number, since it uses less digits than its factorization.

25145501212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14878 (or 14863 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 25145501212 in words is "twenty-five billion, one hundred forty-five million, five hundred one thousand, two hundred twelve".