12512522 has 8 divisors (see below), whose sum is σ = 20475072. Its totient is φ = 5687500.

The previous prime is 12512519. The next prime is 12512531. The reversal of 12512522 is 22521521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12512494 and 12512503.

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, 284354 + ... + 284397.

It is an arithmetic number, because the mean of its divisors is an integer number (2559384).

Almost surely, 2^12512522 is an apocalyptic number.

12512522 is a deficient number, since it is larger than the sum of its proper divisors (7962550).

12512522 is a wasteful number, since it uses less digits than its factorization.

12512522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568764.

The product of its digits is 400, while the sum is 20.

The square root of 12512522 is about 3537.3043408788. The cubic root of 12512522 is about 232.1569117847.

It can be divided in two parts, 1251 and 2522, that added together give a palindrome (3773).

The spelling of 12512522 in words is "twelve million, five hundred twelve thousand, five hundred twenty-two".