55736213 has 8 divisors (see below), whose sum is σ = 61420128. Its totient is φ = 50251824.

The previous prime is 55736209. The next prime is 55736221. The reversal of 55736213 is 31263755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55736213 - 2² = 55736209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55736213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55736203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49295 + ... + 50412.

It is an arithmetic number, because the mean of its divisors is an integer number (7677516).

Almost surely, 2^55736213 is an apocalyptic number.

It is an amenable number.

55736213 is a deficient number, since it is larger than the sum of its proper divisors (5683915).

55736213 is a wasteful number, since it uses less digits than its factorization.

55736213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99763.

The product of its digits is 18900, while the sum is 32.

The square root of 55736213 is about 7465.6689586399. The cubic root of 55736213 is about 381.9845689700.

Adding to 55736213 its reverse (31263755), we get a palindrome (86999968).

The spelling of 55736213 in words is "fifty-five million, seven hundred thirty-six thousand, two hundred thirteen".