55202243 has 2 divisors, whose sum is σ = 55202244. Its totient is φ = 55202242.

The previous prime is 55202237. The next prime is 55202267. The reversal of 55202243 is 34220255.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55202243 is a prime.

It is not a weakly prime, because it can be changed into another prime (55202233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27601121 + 27601122.

It is an arithmetic number, because the mean of its divisors is an integer number (27601122).

Almost surely, 2^55202243 is an apocalyptic number.

55202243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55202243 is an equidigital number, since it uses as much as digits as its factorization.

55202243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 55202243 is about 7429.8211956951. The cubic root of 55202243 is about 380.7608095386.

Adding to 55202243 its reverse (34220255), we get a palindrome (89422498).

The spelling of 55202243 in words is "fifty-five million, two hundred two thousand, two hundred forty-three".