54117805 has 12 divisors (see below), whose sum is σ = 75544380. Its totient is φ = 37109184.

The previous prime is 54117787. The next prime is 54117829. The reversal of 54117805 is 50871145.

It can be written as a sum of positive squares in 2 ways, for example, as 7918596 + 46199209 = 2814^2 + 6797^2 .

It is not a de Polignac number, because 54117805 - 2⁷ = 54117677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110200 + ... + 110689.

It is an arithmetic number, because the mean of its divisors is an integer number (6295365).

Almost surely, 2^54117805 is an apocalyptic number.

It is an amenable number.

54117805 is a deficient number, since it is larger than the sum of its proper divisors (21426575).

54117805 is a wasteful number, since it uses less digits than its factorization.

54117805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220908 (or 220901 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 54117805 is about 7356.4804764235. The cubic root of 54117805 is about 378.2509764435.

The spelling of 54117805 in words is "fifty-four million, one hundred seventeen thousand, eight hundred five".