55204543 has 8 divisors (see below), whose sum is σ = 56157920. Its totient is φ = 54259200.

The previous prime is 55204529. The next prime is 55204549. The reversal of 55204543 is 34540255.

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-55204543 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 (55204549) 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, 12763 + ... + 16531.

It is an arithmetic number, because the mean of its divisors is an integer number (7019740).

Almost surely, 2^55204543 is an apocalyptic number.

55204543 is a deficient number, since it is larger than the sum of its proper divisors (953377).

55204543 is a wasteful number, since it uses less digits than its factorization.

55204543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55204543 is about 7429.9759757350. The cubic root of 55204543 is about 380.7660975948.

Adding to 55204543 its reverse (34540255), we get a palindrome (89744798).

The spelling of 55204543 in words is "fifty-five million, two hundred four thousand, five hundred forty-three".