12505470 has 16 divisors (see below), whose sum is σ = 30013200. Its totient is φ = 3334784.

The previous prime is 12505457. The next prime is 12505481. The reversal of 12505470 is 7450521.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12505470.

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, 208395 + ... + 208454.

It is an arithmetic number, because the mean of its divisors is an integer number (1875825).

Almost surely, 2^12505470 is an apocalyptic number.

12505470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12505470 is an abundant number, since it is smaller than the sum of its proper divisors (17507730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12505470 is a wasteful number, since it uses less digits than its factorization.

12505470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416859.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12505470 is about 3536.3073961408. The cubic root of 12505470 is about 232.1132893984.

Adding to 12505470 its reverse (7450521), we get a palindrome (19955991).

The spelling of 12505470 in words is "twelve million, five hundred five thousand, four hundred seventy".