12563497 has 4 divisors (see below), whose sum is σ = 13109760. Its totient is φ = 12017236.

The previous prime is 12563477. The next prime is 12563501. The reversal of 12563497 is 79436521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12563497 - 2¹⁵ = 12530729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12563417) 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, 273097 + ... + 273142.

It is an arithmetic number, because the mean of its divisors is an integer number (3277440).

Almost surely, 2^12563497 is an apocalyptic number.

It is an amenable number.

12563497 is a deficient number, since it is larger than the sum of its proper divisors (546263).

12563497 is an equidigital number, since it uses as much as digits as its factorization.

12563497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546262.

The product of its digits is 45360, while the sum is 37.

The square root of 12563497 is about 3544.5023628148. The cubic root of 12563497 is about 232.4717474438.

It can be divided in two parts, 1256 and 3497, that added together give a triangular number (4753 = T₉₇).

The spelling of 12563497 in words is "twelve million, five hundred sixty-three thousand, four hundred ninety-seven".