55200823 has 2 divisors, whose sum is σ = 55200824. Its totient is φ = 55200822.

The previous prime is 55200797. The next prime is 55200829. The reversal of 55200823 is 32800255.

55200823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55200823 - 2²¹ = 53103671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55200829) by changing a digit.

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 as a sum of consecutive naturals, namely, 27600411 + 27600412.

It is an arithmetic number, because the mean of its divisors is an integer number (27600412).

Almost surely, 2^55200823 is an apocalyptic number.

55200823 is a deficient number, since it is larger than the sum of its proper divisors (1).

55200823 is an equidigital number, since it uses as much as digits as its factorization.

55200823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 55200823 is about 7429.7256342344. The cubic root of 55200823 is about 380.7575446653.

The spelling of 55200823 in words is "fifty-five million, two hundred thousand, eight hundred twenty-three".