55666793 has 24 divisors (see below), whose sum is σ = 72011520. Its totient is φ = 42608160.

The previous prime is 55666771. The next prime is 55666813. The reversal of 55666793 is 39766655.

It is not a de Polignac number, because 55666793 - 2¹² = 55662697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55666763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18338 + ... + 21156.

It is an arithmetic number, because the mean of its divisors is an integer number (3000480).

Almost surely, 2^55666793 is an apocalyptic number.

It is an amenable number.

55666793 is a deficient number, since it is larger than the sum of its proper divisors (16344727).

55666793 is a wasteful number, since it uses less digits than its factorization.

55666793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2870 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 47.

The square root of 55666793 is about 7461.0182280973. The cubic root of 55666793 is about 381.8259145740.

The spelling of 55666793 in words is "fifty-five million, six hundred sixty-six thousand, seven hundred ninety-three".