55438713 has 24 divisors (see below), whose sum is σ = 91958880. Its totient is φ = 31829760.

The previous prime is 55438711. The next prime is 55438759. The reversal of 55438713 is 31783455.

55438713 is a `hidden beast` number, since 554 + 38 + 71 + 3 = 666.

It is not a de Polignac number, because 55438713 - 2¹ = 55438711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55438711) by changing a digit.

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, 12856 + ... + 16617.

It is an arithmetic number, because the mean of its divisors is an integer number (3831620).

Almost surely, 2^55438713 is an apocalyptic number.

It is an amenable number.

55438713 is a deficient number, since it is larger than the sum of its proper divisors (36520167).

55438713 is a wasteful number, since it uses less digits than its factorization.

55438713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29509 (or 29506 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55438713 is about 7445.7177625800. The cubic root of 55438713 is about 381.3037237559.

The spelling of 55438713 in words is "fifty-five million, four hundred thirty-eight thousand, seven hundred thirteen".