12550019 has 8 divisors (see below), whose sum is σ = 13263360. Its totient is φ = 11850696.

The previous prime is 12550001. The next prime is 12550033. The reversal of 12550019 is 91005521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12550019 is a prime.

It is a super-2 number, since 2×12550019² = 315005953800722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12549976 and 12550003.

It is not an unprimeable number, because it can be changed into a prime (12550049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 5270.

It is an arithmetic number, because the mean of its divisors is an integer number (1657920).

Almost surely, 2^12550019 is an apocalyptic number.

12550019 is a deficient number, since it is larger than the sum of its proper divisors (713341).

12550019 is an equidigital number, since it uses as much as digits as its factorization.

12550019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 12550019 is about 3542.6005984305. The cubic root of 12550019 is about 232.3885865393.

The spelling of 12550019 in words is "twelve million, five hundred fifty thousand, nineteen".