55567243 has 2 divisors, whose sum is σ = 55567244. Its totient is φ = 55567242.

The previous prime is 55567217. The next prime is 55567249. The reversal of 55567243 is 34276555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55567243 is a prime.

It is not a weakly prime, because it can be changed into another prime (55567249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783621 + 27783622.

It is an arithmetic number, because the mean of its divisors is an integer number (27783622).

Almost surely, 2^55567243 is an apocalyptic number.

55567243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55567243 is an equidigital number, since it uses as much as digits as its factorization.

55567243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 37.

The square root of 55567243 is about 7454.3439013772. The cubic root of 55567243 is about 381.5981698765.

The spelling of 55567243 in words is "fifty-five million, five hundred sixty-seven thousand, two hundred forty-three".