54040387 has 8 divisors (see below), whose sum is σ = 56172816. Its totient is φ = 51943392.

The previous prime is 54040373. The next prime is 54040397. The reversal of 54040387 is 78304045.

54040387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-54040387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54040307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5728 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (7021602).

Almost surely, 2^54040387 is an apocalyptic number.

54040387 is a deficient number, since it is larger than the sum of its proper divisors (2132429).

54040387 is a wasteful number, since it uses less digits than its factorization.

54040387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 54040387 is about 7351.2167020161. The cubic root of 54040387 is about 378.0705219149.

It can be divided in two parts, 5404038 and 7, that added together give a palindrome (5404045).

The spelling of 54040387 in words is "fifty-four million, forty thousand, three hundred eighty-seven".