12550541 has 4 divisors (see below), whose sum is σ = 12578112. Its totient is φ = 12522972.

The previous prime is 12550529. The next prime is 12550543. The reversal of 12550541 is 14505521.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14505521 = 181 ⋅80141.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12550541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13091 + ... + 14016.

It is an arithmetic number, because the mean of its divisors is an integer number (3144528).

Almost surely, 2^12550541 is an apocalyptic number.

It is an amenable number.

12550541 is a deficient number, since it is larger than the sum of its proper divisors (27571).

12550541 is an equidigital number, since it uses as much as digits as its factorization.

12550541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27570.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 12550541 is about 3542.6742723541. The cubic root of 12550541 is about 232.3918084510.

The spelling of 12550541 in words is "twelve million, five hundred fifty thousand, five hundred forty-one".