55200555 has 32 divisors (see below), whose sum is σ = 100537920. Its totient is φ = 28719360.

The previous prime is 55200521. The next prime is 55200569. The reversal of 55200555 is 55500255.

It is a happy number.

55200555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55200555 - 2¹⁰ = 55199531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (3141810).

Almost surely, 2^55200555 is an apocalyptic number.

55200555 is a deficient number, since it is larger than the sum of its proper divisors (45337365).

55200555 is a wasteful number, since it uses less digits than its factorization.

55200555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028 (or 10022 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 55200555 is about 7429.7075985533. The cubic root of 55200555 is about 380.7569284716.

It can be divided in two parts, 55200 and 555, that added together give a palindrome (55755).

The spelling of 55200555 in words is "fifty-five million, two hundred thousand, five hundred fifty-five".