55712243 has 2 divisors, whose sum is σ = 55712244. Its totient is φ = 55712242.

The previous prime is 55712231. The next prime is 55712287. The reversal of 55712243 is 34221755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55712243 - 2⁴ = 55712227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55712543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27856121 + 27856122.

It is an arithmetic number, because the mean of its divisors is an integer number (27856122).

Almost surely, 2^55712243 is an apocalyptic number.

55712243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55712243 is an equidigital number, since it uses as much as digits as its factorization.

55712243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 55712243 is about 7464.0634375654. The cubic root of 55712243 is about 381.9298021645.

Adding to 55712243 its reverse (34221755), we get a palindrome (89933998).

It can be divided in two parts, 55712 and 243, that added together give a palindrome (55955).

The spelling of 55712243 in words is "fifty-five million, seven hundred twelve thousand, two hundred forty-three".