12505623 has 8 divisors (see below), whose sum is σ = 17956848. Its totient is φ = 7695744.

The previous prime is 12505613. The next prime is 12505627. The reversal of 12505623 is 32650521.

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

It is not a de Polignac number, because 12505623 - 2⁴ = 12505607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12505593 and 12505602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505627) 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, 160290 + ... + 160367.

It is an arithmetic number, because the mean of its divisors is an integer number (2244606).

Almost surely, 2^12505623 is an apocalyptic number.

12505623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12505623 is a deficient number, since it is larger than the sum of its proper divisors (5451225).

12505623 is a wasteful number, since it uses less digits than its factorization.

12505623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320673.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12505623 is about 3536.3290288094. The cubic root of 12505623 is about 232.1142360025.

The spelling of 12505623 in words is "twelve million, five hundred five thousand, six hundred twenty-three".