12265550 has 48 divisors (see below), whose sum is σ = 25779600. Its totient is φ = 4300800.

The previous prime is 12265523. The next prime is 12265573. The reversal of 12265550 is 5556221.

12265550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15566 + ... + 16334.

It is an arithmetic number, because the mean of its divisors is an integer number (537075).

Almost surely, 2^12265550 is an apocalyptic number.

12265550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12265550 is an abundant number, since it is smaller than the sum of its proper divisors (13514050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12265550 is a wasteful number, since it uses less digits than its factorization.

12265550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 12265550 is about 3502.2207240550. The cubic root of 12265550 is about 230.6193138827.

It can be divided in two parts, 1226 and 5550, that added together give a palindrome (6776).

The spelling of 12265550 in words is "twelve million, two hundred sixty-five thousand, five hundred fifty".