12504577 has 4 divisors (see below), whose sum is σ = 12512980. Its totient is φ = 12496176.

The previous prime is 12504559. The next prime is 12504581. The reversal of 12504577 is 77540521.

12504577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3984016 + 8520561 = 1996^2 + 2919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12504577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12504517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (3128245).

Almost surely, 2^12504577 is an apocalyptic number.

It is an amenable number.

12504577 is a deficient number, since it is larger than the sum of its proper divisors (8403).

12504577 is an equidigital number, since it uses as much as digits as its factorization.

12504577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8402.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 12504577 is about 3536.1811322386. The cubic root of 12504577 is about 232.1077642935.

The spelling of 12504577 in words is "twelve million, five hundred four thousand, five hundred seventy-seven".