54491863 has 4 divisors (see below), whose sum is σ = 54506800. Its totient is φ = 54476928.

The previous prime is 54491821. The next prime is 54491873. The reversal of 54491863 is 36819445.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54491863 - 2⁹ = 54491351 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 (54491803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (13626700).

Almost surely, 2^54491863 is an apocalyptic number.

54491863 is a deficient number, since it is larger than the sum of its proper divisors (14937).

54491863 is an equidigital number, since it uses as much as digits as its factorization.

54491863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14936.

The product of its digits is 103680, while the sum is 40.

The square root of 54491863 is about 7381.8604023647. The cubic root of 54491863 is about 379.1204565563.

The spelling of 54491863 in words is "fifty-four million, four hundred ninety-one thousand, eight hundred sixty-three".