12505607242 has 32 divisors (see below), whose sum is σ = 19825948800. Its totient is φ = 5904273408.

The previous prime is 12505607237. The next prime is 12505607243. The reversal of 12505607242 is 24270650521.

It is a junction number, because it is equal to n+sod(n) for n = 12505607198 and 12505607207.

It is not an unprimeable number, because it can be changed into a prime (12505607243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1866234 + ... + 1872922.

It is an arithmetic number, because the mean of its divisors is an integer number (619560900).

Almost surely, 2^12505607242 is an apocalyptic number.

12505607242 is a deficient number, since it is larger than the sum of its proper divisors (7320341558).

12505607242 is a wasteful number, since it uses less digits than its factorization.

12505607242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 12505607242 in words is "twelve billion, five hundred five million, six hundred seven thousand, two hundred forty-two".