55719117 has 8 divisors (see below), whose sum is σ = 82546880. Its totient is φ = 37146060.

The previous prime is 55719107. The next prime is 55719119. The reversal of 55719117 is 71191755.

55719117 is a `hidden beast` number, since 557 + 1 + 91 + 17 = 666.

55719117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55719117 - 2⁷ = 55718989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55719119) 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, 1031809 + ... + 1031862.

It is an arithmetic number, because the mean of its divisors is an integer number (10318360).

Almost surely, 2^55719117 is an apocalyptic number.

It is an amenable number.

55719117 is a deficient number, since it is larger than the sum of its proper divisors (26827763).

55719117 is a wasteful number, since it uses less digits than its factorization.

55719117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063680 (or 2063674 counting only the distinct ones).

The product of its digits is 11025, while the sum is 36.

The square root of 55719117 is about 7464.5238964049. The cubic root of 55719117 is about 381.9455095288.

The spelling of 55719117 in words is "fifty-five million, seven hundred nineteen thousand, one hundred seventeen".