55646803 has 4 divisors (see below), whose sum is σ = 55675048. Its totient is φ = 55618560.

The previous prime is 55646777. The next prime is 55646827. The reversal of 55646803 is 30864655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30864655 = 5 ⋅6172931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55646803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55646203) 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, 10926 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (13918762).

Almost surely, 2^55646803 is an apocalyptic number.

55646803 is a deficient number, since it is larger than the sum of its proper divisors (28245).

55646803 is a wasteful number, since it uses less digits than its factorization.

55646803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28244.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 55646803 is about 7459.6784783260. The cubic root of 55646803 is about 381.7802044152.

The spelling of 55646803 in words is "fifty-five million, six hundred forty-six thousand, eight hundred three".