12505475 has 12 divisors (see below), whose sum is σ = 15868776. Its totient is φ = 9770880.

The previous prime is 12505457. The next prime is 12505481. The reversal of 12505475 is 57450521.

It is not a de Polignac number, because 12505475 - 2⁸ = 12505219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4742 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (1322398).

Almost surely, 2^12505475 is an apocalyptic number.

12505475 is a deficient number, since it is larger than the sum of its proper divisors (3363301).

12505475 is a wasteful number, since it uses less digits than its factorization.

12505475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11686 (or 11681 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 12505475 is about 3536.3081030928. The cubic root of 12505475 is about 232.1133203333.

Adding to 12505475 its reverse (57450521), we get a palindrome (69955996).

The spelling of 12505475 in words is "twelve million, five hundred five thousand, four hundred seventy-five".