55816747 has 8 divisors (see below), whose sum is σ = 63843296. Its totient is φ = 47803392.

The previous prime is 55816727. The next prime is 55816751. The reversal of 55816747 is 74761855.

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

It is not a de Polignac number, because 55816747 - 2¹¹ = 55814699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55816727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8683 + ... + 13675.

It is an arithmetic number, because the mean of its divisors is an integer number (7980412).

Almost surely, 2^55816747 is an apocalyptic number.

55816747 is a deficient number, since it is larger than the sum of its proper divisors (8026549).

55816747 is a wasteful number, since it uses less digits than its factorization.

55816747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597.

The product of its digits is 235200, while the sum is 43.

The square root of 55816747 is about 7471.0606342072. The cubic root of 55816747 is about 382.1684586353.

The spelling of 55816747 in words is "fifty-five million, eight hundred sixteen thousand, seven hundred forty-seven".