54815723 has 4 divisors (see below), whose sum is σ = 55431720. Its totient is φ = 54199728.

The previous prime is 54815711. The next prime is 54815777. The reversal of 54815723 is 32751845.

It is a happy number.

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 54815723 - 2⁶ = 54815659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54818723) 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, 307865 + ... + 308042.

It is an arithmetic number, because the mean of its divisors is an integer number (13857930).

Almost surely, 2^54815723 is an apocalyptic number.

54815723 is a deficient number, since it is larger than the sum of its proper divisors (615997).

54815723 is an equidigital number, since it uses as much as digits as its factorization.

54815723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615996.

The product of its digits is 33600, while the sum is 35.

The square root of 54815723 is about 7403.7641102347. The cubic root of 54815723 is about 379.8700455903.

The spelling of 54815723 in words is "fifty-four million, eight hundred fifteen thousand, seven hundred twenty-three".