55823543 has 4 divisors (see below), whose sum is σ = 55841448. Its totient is φ = 55805640.

The previous prime is 55823531. The next prime is 55823549. The reversal of 55823543 is 34532855.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55823543 - 2¹² = 55819447 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 (55823549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921 + ... + 10962.

It is an arithmetic number, because the mean of its divisors is an integer number (13960362).

Almost surely, 2^55823543 is an apocalyptic number.

55823543 is a deficient number, since it is larger than the sum of its proper divisors (17905).

55823543 is a wasteful number, since it uses less digits than its factorization.

55823543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904.

The product of its digits is 72000, while the sum is 35.

The square root of 55823543 is about 7471.5154419970. The cubic root of 55823543 is about 382.1839683857.

The spelling of 55823543 in words is "fifty-five million, eight hundred twenty-three thousand, five hundred forty-three".