12505603 has 8 divisors (see below), whose sum is σ = 13671216. Its totient is φ = 11344800.

The previous prime is 12505601. The next prime is 12505607. The reversal of 12505603 is 30650521.

It is a happy number.

12505603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12505603 - 2¹ = 12505601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12505601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6313 + ... + 8053.

It is an arithmetic number, because the mean of its divisors is an integer number (1708902).

Almost surely, 2^12505603 is an apocalyptic number.

12505603 is a deficient number, since it is larger than the sum of its proper divisors (1165613).

12505603 is a wasteful number, since it uses less digits than its factorization.

12505603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 12505603 is about 3536.3262010171. The cubic root of 12505603 is about 232.1141122639.

The spelling of 12505603 in words is "twelve million, five hundred five thousand, six hundred three".