54131799 has 4 divisors (see below), whose sum is σ = 72175736. Its totient is φ = 36087864.

The previous prime is 54131789. The next prime is 54131801. The reversal of 54131799 is 99713145.

It is a happy number.

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

It is not a de Polignac number, because 54131799 - 2⁴ = 54131783 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 (54131729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9021964 + ... + 9021969.

It is an arithmetic number, because the mean of its divisors is an integer number (18043934).

Almost surely, 2^54131799 is an apocalyptic number.

54131799 is a deficient number, since it is larger than the sum of its proper divisors (18043937).

54131799 is a wasteful number, since it uses less digits than its factorization.

54131799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18043936.

The product of its digits is 34020, while the sum is 39.

The square root of 54131799 is about 7357.4315491209. The cubic root of 54131799 is about 378.2835768541.

The spelling of 54131799 in words is "fifty-four million, one hundred thirty-one thousand, seven hundred ninety-nine".