55717718 has 8 divisors (see below), whose sum is σ = 95516112. Its totient is φ = 23879016.

The previous prime is 55717679. The next prime is 55717769. The reversal of 55717718 is 81771755.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1989905 + ... + 1989932.

It is an arithmetic number, because the mean of its divisors is an integer number (11939514).

Almost surely, 2^55717718 is an apocalyptic number.

55717718 is a deficient number, since it is larger than the sum of its proper divisors (39798394).

55717718 is a wasteful number, since it uses less digits than its factorization.

55717718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979846.

The product of its digits is 68600, while the sum is 41.

The square root of 55717718 is about 7464.4301858883. The cubic root of 55717718 is about 381.9423128627.

The spelling of 55717718 in words is "fifty-five million, seven hundred seventeen thousand, seven hundred eighteen".