55809736 has 8 divisors (see below), whose sum is σ = 104643270. Its totient is φ = 27904864.

The previous prime is 55809709. The next prime is 55809773. The reversal of 55809736 is 63790855.

55809736 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., 55800900 + 8836 = 7470^2 + 94^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55809736² = 6229453264779392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55809692 and 55809701.

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, 3488101 + ... + 3488116.

Almost surely, 2^55809736 is an apocalyptic number.

It is an amenable number.

55809736 is a deficient number, since it is larger than the sum of its proper divisors (48833534).

55809736 is a wasteful number, since it uses less digits than its factorization.

55809736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6976223 (or 6976219 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 55809736 is about 7470.5914089850. The cubic root of 55809736 is about 382.1524568950.

The spelling of 55809736 in words is "fifty-five million, eight hundred nine thousand, seven hundred thirty-six".