54243015 has 16 divisors (see below), whose sum is σ = 87979488. Its totient is φ = 28532736.

The previous prime is 54243011. The next prime is 54243019. The reversal of 54243015 is 51034245.

It is an interprime number because it is at equal distance from previous prime (54243011) and next prime (54243019).

It is not a de Polignac number, because 54243015 - 2² = 54243011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54243011) 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 15 ways as a sum of consecutive naturals, for example, 23674 + ... + 25863.

It is an arithmetic number, because the mean of its divisors is an integer number (5498718).

Almost surely, 2^54243015 is an apocalyptic number.

54243015 is a deficient number, since it is larger than the sum of its proper divisors (33736473).

54243015 is a wasteful number, since it uses less digits than its factorization.

54243015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49618.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 54243015 is about 7364.9857433671. The cubic root of 54243015 is about 378.5424660072.

The spelling of 54243015 in words is "fifty-four million, two hundred forty-three thousand, fifteen".