54805997 has 4 divisors (see below), whose sum is σ = 54872160. Its totient is φ = 54739836.

The previous prime is 54805967. The next prime is 54806023. The reversal of 54805997 is 79950845.

54805997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54805997 - 2¹⁰ = 54804973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54805967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31823 + ... + 33500.

It is an arithmetic number, because the mean of its divisors is an integer number (13718040).

Almost surely, 2^54805997 is an apocalyptic number.

It is an amenable number.

54805997 is a deficient number, since it is larger than the sum of its proper divisors (66163).

54805997 is an equidigital number, since it uses as much as digits as its factorization.

54805997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66162.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 54805997 is about 7403.1072530391. The cubic root of 54805997 is about 379.8475773738.

The spelling of 54805997 in words is "fifty-four million, eight hundred five thousand, nine hundred ninety-seven".