12550393 has 4 divisors (see below), whose sum is σ = 13210960. Its totient is φ = 11889828.

The previous prime is 12550357. The next prime is 12550411. The reversal of 12550393 is 39305521.

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: 39305521 = 103 ⋅381607.

It is a cyclic number.

It is not a de Polignac number, because 12550393 - 2²¹ = 10453241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12550313) 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, 330255 + ... + 330292.

It is an arithmetic number, because the mean of its divisors is an integer number (3302740).

Almost surely, 2^12550393 is an apocalyptic number.

It is an amenable number.

12550393 is a deficient number, since it is larger than the sum of its proper divisors (660567).

12550393 is an equidigital number, since it uses as much as digits as its factorization.

12550393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660566.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 12550393 is about 3542.6533841176. The cubic root of 12550393 is about 232.3908949679.

The spelling of 12550393 in words is "twelve million, five hundred fifty thousand, three hundred ninety-three".