12250505 has 8 divisors (see below), whose sum is σ = 14767872. Its totient is φ = 9755568.

The previous prime is 12250501. The next prime is 12250519. The reversal of 12250505 is 50505221.

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

It is a cyclic number.

It is not a de Polignac number, because 12250505 - 2² = 12250501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12250501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4379 + ... + 6608.

It is an arithmetic number, because the mean of its divisors is an integer number (1845984).

Almost surely, 2^12250505 is an apocalyptic number.

It is an amenable number.

12250505 is a deficient number, since it is larger than the sum of its proper divisors (2517367).

12250505 is a wasteful number, since it uses less digits than its factorization.

12250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 12250505 is about 3500.0721421136. The cubic root of 12250505 is about 230.5249822741.

Adding to 12250505 its reverse (50505221), we get a palindrome (62755726).

The spelling of 12250505 in words is "twelve million, two hundred fifty thousand, five hundred five".