55323205 has 12 divisors (see below), whose sum is σ = 77227020. Its totient is φ = 37935744.

The previous prime is 55323199. The next prime is 55323209. The reversal of 55323205 is 50232355.

It can be written as a sum of positive squares in 2 ways, for example, as 38725729 + 16597476 = 6223^2 + 4074^2 .

It is not a de Polignac number, because 55323205 - 2³ = 55323197 is a prime.

It is a super-2 number, since 2×55323205² = 6121314022944050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55323209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112660 + ... + 113149.

It is an arithmetic number, because the mean of its divisors is an integer number (6435585).

Almost surely, 2^55323205 is an apocalyptic number.

It is an amenable number.

55323205 is a deficient number, since it is larger than the sum of its proper divisors (21903815).

55323205 is a wasteful number, since it uses less digits than its factorization.

55323205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225828 (or 225821 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 55323205 is about 7437.9570447805. The cubic root of 55323205 is about 381.0387208829.

The spelling of 55323205 in words is "fifty-five million, three hundred twenty-three thousand, two hundred five".