55044723 has 4 divisors (see below), whose sum is σ = 73392968. Its totient is φ = 36696480.

The previous prime is 55044719. The next prime is 55044733. The reversal of 55044723 is 32744055.

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

It is not a de Polignac number, because 55044723 - 2² = 55044719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55044713) 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, 9174118 + ... + 9174123.

It is an arithmetic number, because the mean of its divisors is an integer number (18348242).

Almost surely, 2^55044723 is an apocalyptic number.

55044723 is a deficient number, since it is larger than the sum of its proper divisors (18348245).

55044723 is a wasteful number, since it uses less digits than its factorization.

55044723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18348244.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 55044723 is about 7419.2130984357. The cubic root of 55044723 is about 380.3982965997.

Adding to 55044723 its reverse (32744055), we get a palindrome (87788778).

The spelling of 55044723 in words is "fifty-five million, forty-four thousand, seven hundred twenty-three".