12550251 has 16 divisors (see below), whose sum is σ = 19208448. Its totient is φ = 7140000.

The previous prime is 12550247. The next prime is 12550259. The reversal of 12550251 is 15205521.

12550251 = 251² + 252² + ... + 376².

It is not a de Polignac number, because 12550251 - 2² = 12550247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12550259) 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 15 ways as a sum of consecutive naturals, for example, 4081 + ... + 6461.

It is an arithmetic number, because the mean of its divisors is an integer number (1200528).

Almost surely, 2^12550251 is an apocalyptic number.

12550251 is a deficient number, since it is larger than the sum of its proper divisors (6658197).

12550251 is a wasteful number, since it uses less digits than its factorization.

12550251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 12550251 is about 3542.6333425857. The cubic root of 12550251 is about 232.3900185111.

Adding to 12550251 its reverse (15205521), we get a palindrome (27755772).

The spelling of 12550251 in words is "twelve million, five hundred fifty thousand, two hundred fifty-one".