12055572 has 18 divisors (see below), whose sum is σ = 30473898. Its totient is φ = 4018512.

The previous prime is 12055553. The next prime is 12055577. The reversal of 12055572 is 27555021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11737476 + 318096 = 3426^2 + 564^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055577) 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 5 ways as a sum of consecutive naturals, for example, 167403 + ... + 167474.

Almost surely, 2^12055572 is an apocalyptic number.

12055572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12055572 is an abundant number, since it is smaller than the sum of its proper divisors (18418326).

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

12055572 is a wasteful number, since it uses less digits than its factorization.

12055572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334887 (or 334882 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 12055572 is about 3472.1134774082. The cubic root of 12055572 is about 229.2957158043.

The spelling of 12055572 in words is "twelve million, fifty-five thousand, five hundred seventy-two".