54000815 has 16 divisors (see below), whose sum is σ = 70972416. Its totient is φ = 39117600.

The previous prime is 54000811. The next prime is 54000827. The reversal of 54000815 is 51800045.

It is not a de Polignac number, because 54000815 - 2² = 54000811 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 (54000811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13094 + ... + 16716.

It is an arithmetic number, because the mean of its divisors is an integer number (4435776).

Almost surely, 2^54000815 is an apocalyptic number.

54000815 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54000815 is a deficient number, since it is larger than the sum of its proper divisors (16971601).

54000815 is a wasteful number, since it uses less digits than its factorization.

54000815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 54000815 is about 7348.5246818664. The cubic root of 54000815 is about 377.9782165064.

The spelling of 54000815 in words is "fifty-four million, eight hundred fifteen", and thus it is an aban number.