54813939 has 8 divisors (see below), whose sum is σ = 73171200. Its totient is φ = 36499656.

The previous prime is 54813923. The next prime is 54813961. The reversal of 54813939 is 93931845.

54813939 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 not a de Polignac number, because 54813939 - 2⁴ = 54813923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54813939.

It is not an unprimeable number, because it can be changed into a prime (54813919) 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, 7639 + ... + 12960.

It is an arithmetic number, because the mean of its divisors is an integer number (9146400).

Almost surely, 2^54813939 is an apocalyptic number.

54813939 is a deficient number, since it is larger than the sum of its proper divisors (18357261).

54813939 is a wasteful number, since it uses less digits than its factorization.

54813939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21489.

The product of its digits is 116640, while the sum is 42.

The square root of 54813939 is about 7403.6436299973. The cubic root of 54813939 is about 379.8659245372.

The spelling of 54813939 in words is "fifty-four million, eight hundred thirteen thousand, nine hundred thirty-nine".