55723844 has 12 divisors (see below), whose sum is σ = 106381968. Its totient is φ = 25329000.

The previous prime is 55723817. The next prime is 55723847. The reversal of 55723844 is 44832755.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55723798 and 55723807.

It is not an unprimeable number, because it can be changed into a prime (55723847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633182 + ... + 633269.

It is an arithmetic number, because the mean of its divisors is an integer number (8865164).

Almost surely, 2^55723844 is an apocalyptic number.

It is an amenable number.

55723844 is a deficient number, since it is larger than the sum of its proper divisors (50658124).

55723844 is a wasteful number, since it uses less digits than its factorization.

55723844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266466 (or 1266464 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 55723844 is about 7464.8405207345. The cubic root of 55723844 is about 381.9563101628.

The spelling of 55723844 in words is "fifty-five million, seven hundred twenty-three thousand, eight hundred forty-four".