54401939 has 4 divisors (see below), whose sum is σ = 54594456. Its totient is φ = 54209424.

The previous prime is 54401861. The next prime is 54401947. The reversal of 54401939 is 93910445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54401939 - 2¹² = 54397843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54401899 and 54401908.

It is not an unprimeable number, because it can be changed into a prime (54401239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95834 + ... + 96399.

It is an arithmetic number, because the mean of its divisors is an integer number (13648614).

Almost surely, 2^54401939 is an apocalyptic number.

54401939 is a deficient number, since it is larger than the sum of its proper divisors (192517).

54401939 is a wasteful number, since it uses less digits than its factorization.

54401939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192516.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 54401939 is about 7375.7670109623. The cubic root of 54401939 is about 378.9117966667.

The spelling of 54401939 in words is "fifty-four million, four hundred one thousand, nine hundred thirty-nine".