54381181 has 4 divisors (see below), whose sum is σ = 57580092. Its totient is φ = 51182272.

The previous prime is 54381169. The next prime is 54381193. The reversal of 54381181 is 18118345.

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

It is an interprime number because it is at equal distance from previous prime (54381169) and next prime (54381193).

It can be written as a sum of positive squares in 2 ways, for example, as 45441081 + 8940100 = 6741^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 54381181 - 2⁷ = 54381053 is a prime.

It is a super-2 number, since 2×54381181² = 5914625693909522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54381281) 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, 1599430 + ... + 1599463.

It is an arithmetic number, because the mean of its divisors is an integer number (14395023).

Almost surely, 2^54381181 is an apocalyptic number.

It is an amenable number.

54381181 is a deficient number, since it is larger than the sum of its proper divisors (3198911).

54381181 is a wasteful number, since it uses less digits than its factorization.

54381181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198910.

The product of its digits is 3840, while the sum is 31.

The square root of 54381181 is about 7374.3597010181. The cubic root of 54381181 is about 378.8635970876.

The spelling of 54381181 in words is "fifty-four million, three hundred eighty-one thousand, one hundred eighty-one".