55716907 has 4 divisors (see below), whose sum is σ = 55810216. Its totient is φ = 55623600.

The previous prime is 55716901. The next prime is 55716929. The reversal of 55716907 is 70961755.

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 55716907 - 2¹⁹ = 55192619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55716907.

It is not an unprimeable number, because it can be changed into a prime (55716901) 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, 45753 + ... + 46954.

It is an arithmetic number, because the mean of its divisors is an integer number (13952554).

Almost surely, 2^55716907 is an apocalyptic number.

55716907 is a deficient number, since it is larger than the sum of its proper divisors (93309).

55716907 is an equidigital number, since it uses as much as digits as its factorization.

55716907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93308.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 55716907 is about 7464.3758613832. The cubic root of 55716907 is about 381.9404597315.

The spelling of 55716907 in words is "fifty-five million, seven hundred sixteen thousand, nine hundred seven".