55718705 has 16 divisors (see below), whose sum is σ = 76540800. Its totient is φ = 38143872.

The previous prime is 55718701. The next prime is 55718723. The reversal of 55718705 is 50781755.

It is a cyclic number.

It is not a de Polignac number, because 55718705 - 2² = 55718701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55718701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31946 + ... + 33644.

It is an arithmetic number, because the mean of its divisors is an integer number (4783800).

Almost surely, 2^55718705 is an apocalyptic number.

It is an amenable number.

55718705 is a deficient number, since it is larger than the sum of its proper divisors (20822095).

55718705 is a wasteful number, since it uses less digits than its factorization.

55718705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 49000, while the sum is 38.

The square root of 55718705 is about 7464.4962991484. The cubic root of 55718705 is about 381.9445681288.

The spelling of 55718705 in words is "fifty-five million, seven hundred eighteen thousand, seven hundred five".