12455552 has 64 divisors (see below), whose sum is σ = 26568960. Its totient is φ = 5806080.

The previous prime is 12455533. The next prime is 12455563. The reversal of 12455552 is 25555421.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170588 + ... + 170660.

It is an arithmetic number, because the mean of its divisors is an integer number (415140).

Almost surely, 2^12455552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13284480).

12455552 is an abundant number, since it is smaller than the sum of its proper divisors (14113408).

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

12455552 is an equidigital number, since it uses as much as digits as its factorization.

12455552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 12455552 is about 3529.2424116232. The cubic root of 12455552 is about 231.8040358686.

The spelling of 12455552 in words is "twelve million, four hundred fifty-five thousand, five hundred fifty-two".