54312171 has 4 divisors (see below), whose sum is σ = 72416232. Its totient is φ = 36208112.

The previous prime is 54312169. The next prime is 54312191. The reversal of 54312171 is 17121345.

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 54312171 - 2¹ = 54312169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54312101) 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, 9052026 + ... + 9052031.

It is an arithmetic number, because the mean of its divisors is an integer number (18104058).

Almost surely, 2^54312171 is an apocalyptic number.

54312171 is a deficient number, since it is larger than the sum of its proper divisors (18104061).

54312171 is a wasteful number, since it uses less digits than its factorization.

54312171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18104060.

The product of its digits is 840, while the sum is 24.

The square root of 54312171 is about 7369.6791653368. The cubic root of 54312171 is about 378.7032692947.

The spelling of 54312171 in words is "fifty-four million, three hundred twelve thousand, one hundred seventy-one".