55219636 has 6 divisors (see below), whose sum is σ = 96634370. Its totient is φ = 27609816.

The previous prime is 55219627. The next prime is 55219663. The reversal of 55219636 is 63691255.

55219636 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 only one way, i.e., 43956900 + 11262736 = 6630^2 + 3356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55219595 and 55219604.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6902451 + ... + 6902458.

Almost surely, 2^55219636 is an apocalyptic number.

It is an amenable number.

55219636 is a deficient number, since it is larger than the sum of its proper divisors (41414734).

55219636 is a wasteful number, since it uses less digits than its factorization.

55219636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13804913 (or 13804911 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 55219636 is about 7430.9915892834. The cubic root of 55219636 is about 380.8007950958.

It can be divided in two parts, 55219 and 636, that added together give a palindrome (55855).

The spelling of 55219636 in words is "fifty-five million, two hundred nineteen thousand, six hundred thirty-six".