55636543 has 8 divisors (see below), whose sum is σ = 56453760. Its totient is φ = 54825120.

The previous prime is 55636513. The next prime is 55636547. The reversal of 55636543 is 34563655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55636543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55636547) 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, 20178 + ... + 22768.

It is an arithmetic number, because the mean of its divisors is an integer number (7056720).

Almost surely, 2^55636543 is an apocalyptic number.

55636543 is a deficient number, since it is larger than the sum of its proper divisors (817217).

55636543 is a wasteful number, since it uses less digits than its factorization.

55636543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897.

The product of its digits is 162000, while the sum is 37.

The square root of 55636543 is about 7458.9907494245. The cubic root of 55636543 is about 381.7567391219.

The spelling of 55636543 in words is "fifty-five million, six hundred thirty-six thousand, five hundred forty-three".