12552905 has 4 divisors (see below), whose sum is σ = 15063492. Its totient is φ = 10042320.

The previous prime is 12552887. The next prime is 12552907. The reversal of 12552905 is 50925521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3286969 + 9265936 = 1813^2 + 3044^2 .

It is not a de Polignac number, because 12552905 - 2¹⁰ = 12551881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12552907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255286 + ... + 1255295.

It is an arithmetic number, because the mean of its divisors is an integer number (3765873).

Almost surely, 2^12552905 is an apocalyptic number.

It is an amenable number.

12552905 is a deficient number, since it is larger than the sum of its proper divisors (2510587).

12552905 is an equidigital number, since it uses as much as digits as its factorization.

12552905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510586.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 12552905 is about 3543.0079028983. The cubic root of 12552905 is about 232.4063985192.

The spelling of 12552905 in words is "twelve million, five hundred fifty-two thousand, nine hundred five".