55323843 has 32 divisors (see below), whose sum is σ = 79132416. Its totient is φ = 34328448.

The previous prime is 55323823. The next prime is 55323859. The reversal of 55323843 is 34832355.

It is a Cunningham number, because it is equal to 7438²-1.

It is not a de Polignac number, because 55323843 - 2¹⁰ = 55322819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55323803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319705 + ... + 319877.

It is an arithmetic number, because the mean of its divisors is an integer number (2472888).

Almost surely, 2^55323843 is an apocalyptic number.

55323843 is a deficient number, since it is larger than the sum of its proper divisors (23808573).

55323843 is a wasteful number, since it uses less digits than its factorization.

55323843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its digits is 43200, while the sum is 33.

The square root of 55323843 is about 7437.9999327776. Note that the first 4 decimals coincide. The cubic root of 55323843 is about 381.0401856195.

The spelling of 55323843 in words is "fifty-five million, three hundred twenty-three thousand, eight hundred forty-three".