54168013 has 6 divisors (see below), whose sum is σ = 56626094. Its totient is φ = 51812376.

The previous prime is 54167989. The next prime is 54168029. The reversal of 54168013 is 31086145.

It can be written as a sum of positive squares in only one way, i.e., 47293129 + 6874884 = 6877^2 + 2622^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54168013 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 (54168053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50670 + ... + 51727.

Almost surely, 2^54168013 is an apocalyptic number.

It is an amenable number.

54168013 is a deficient number, since it is larger than the sum of its proper divisors (2458081).

54168013 is a wasteful number, since it uses less digits than its factorization.

54168013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102443 (or 102420 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 54168013 is about 7359.8921867103. The cubic root of 54168013 is about 378.3679148830.

The spelling of 54168013 in words is "fifty-four million, one hundred sixty-eight thousand, thirteen".