12563251 has 4 divisors (see below), whose sum is σ = 12576600. Its totient is φ = 12549904.

The previous prime is 12563249. The next prime is 12563263. The reversal of 12563251 is 15236521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15236521 = 211 ⋅72211.

It is a cyclic number.

It is not a de Polignac number, because 12563251 - 2¹ = 12563249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12563851) 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, 5146 + ... + 7183.

It is an arithmetic number, because the mean of its divisors is an integer number (3144150).

Almost surely, 2^12563251 is an apocalyptic number.

12563251 is a deficient number, since it is larger than the sum of its proper divisors (13349).

12563251 is a wasteful number, since it uses less digits than its factorization.

12563251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13348.

The product of its digits is 1800, while the sum is 25.

The square root of 12563251 is about 3544.4676610177. The cubic root of 12563251 is about 232.4702301268.

Adding to 12563251 its reverse (15236521), we get a palindrome (27799772).

The spelling of 12563251 in words is "twelve million, five hundred sixty-three thousand, two hundred fifty-one".