54939723 has 4 divisors (see below), whose sum is σ = 73252968. Its totient is φ = 36626480.

The previous prime is 54939691. The next prime is 54939737. The reversal of 54939723 is 32793945.

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 54939723 - 2⁵ = 54939691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54939793) 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, 9156618 + ... + 9156623.

It is an arithmetic number, because the mean of its divisors is an integer number (18313242).

Almost surely, 2^54939723 is an apocalyptic number.

54939723 is a deficient number, since it is larger than the sum of its proper divisors (18313245).

54939723 is a wasteful number, since it uses less digits than its factorization.

54939723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313244.

The product of its digits is 204120, while the sum is 42.

The square root of 54939723 is about 7412.1334985279. The cubic root of 54939723 is about 380.1562676774.

The spelling of 54939723 in words is "fifty-four million, nine hundred thirty-nine thousand, seven hundred twenty-three".