55211236 has 12 divisors (see below), whose sum is σ = 97616428. Its totient is φ = 27320832.

The previous prime is 55211227. The next prime is 55211237. The reversal of 55211236 is 63211255.

55211236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33177600 + 22033636 = 5760^2 + 4694^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55211236.

It is not an unprimeable number, because it can be changed into a prime (55211237) 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 3 ways as a sum of consecutive naturals, for example, 70761 + ... + 71536.

Almost surely, 2^55211236 is an apocalyptic number.

It is an amenable number.

55211236 is a deficient number, since it is larger than the sum of its proper divisors (42405192).

55211236 is a wasteful number, since it uses less digits than its factorization.

55211236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142398 (or 142396 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 55211236 is about 7430.4263673089. The cubic root of 55211236 is about 380.7814850030.

The spelling of 55211236 in words is "fifty-five million, two hundred eleven thousand, two hundred thirty-six".