12258550 has 12 divisors (see below), whose sum is σ = 22800996. Its totient is φ = 4903400.

The previous prime is 12258511. The next prime is 12258551. The reversal of 12258550 is 5585221.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122536 + ... + 122635.

It is an arithmetic number, because the mean of its divisors is an integer number (1900083).

Almost surely, 2^12258550 is an apocalyptic number.

12258550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12258550 is a deficient number, since it is larger than the sum of its proper divisors (10542446).

12258550 is a wasteful number, since it uses less digits than its factorization.

12258550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245183 (or 245178 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 12258550 is about 3501.2212155190. The cubic root of 12258550 is about 230.5754337360.

The spelling of 12258550 in words is "twelve million, two hundred fifty-eight thousand, five hundred fifty".