55345203 has 24 divisors (see below), whose sum is σ = 82607616. Its totient is φ = 35683200.

The previous prime is 55345187. The next prime is 55345211. The reversal of 55345203 is 30254355.

It is not a de Polignac number, because 55345203 - 2⁴ = 55345187 is a prime.

It is a super-2 number, since 2×55345203² = 6126182990222418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55345223) 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, 46273 + ... + 47453.

It is an arithmetic number, because the mean of its divisors is an integer number (3441984).

Almost surely, 2^55345203 is an apocalyptic number.

55345203 is a deficient number, since it is larger than the sum of its proper divisors (27262413).

55345203 is a wasteful number, since it uses less digits than its factorization.

55345203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55345203 is about 7439.4356640810. The cubic root of 55345203 is about 381.0892179515.

Adding to 55345203 its reverse (30254355), we get a palindrome (85599558).

The spelling of 55345203 in words is "fifty-five million, three hundred forty-five thousand, two hundred three".