55705203 has 12 divisors (see below), whose sum is σ = 80605200. Its totient is φ = 37071216.

The previous prime is 55705193. The next prime is 55705211. The reversal of 55705203 is 30250755.

It is not a de Polignac number, because 55705203 - 2⁴ = 55705187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55705303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225 + ... + 10557.

It is an arithmetic number, because the mean of its divisors is an integer number (6717100).

Almost surely, 2^55705203 is an apocalyptic number.

55705203 is a deficient number, since it is larger than the sum of its proper divisors (24899997).

55705203 is a wasteful number, since it uses less digits than its factorization.

55705203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10938 (or 10935 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55705203 is about 7463.5918296756. The cubic root of 55705203 is about 381.9137141443.

Adding to 55705203 its reverse (30250755), we get a palindrome (85955958).

The spelling of 55705203 in words is "fifty-five million, seven hundred five thousand, two hundred three".