54193815 has 24 divisors (see below), whose sum is σ = 101162880. Its totient is φ = 26679744.

The previous prime is 54193793. The next prime is 54193823. The reversal of 54193815 is 51839145.

It is not a de Polignac number, because 54193815 - 2¹⁵ = 54161047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54193815.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 45735 + ... + 46904.

It is an arithmetic number, because the mean of its divisors is an integer number (4215120).

Almost surely, 2^54193815 is an apocalyptic number.

54193815 is a deficient number, since it is larger than the sum of its proper divisors (46969065).

54193815 is a wasteful number, since it uses less digits than its factorization.

54193815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92663 (or 92660 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 54193815 is about 7361.6448569596. The cubic root of 54193815 is about 378.4279816931.

The spelling of 54193815 in words is "fifty-four million, one hundred ninety-three thousand, eight hundred fifteen".