55622141 has 2 divisors, whose sum is σ = 55622142. Its totient is φ = 55622140.

The previous prime is 55622129. The next prime is 55622143. The reversal of 55622141 is 14122655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55562116 + 60025 = 7454^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 55622141 - 2¹⁰ = 55621117 is a prime.

Together with 55622143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55622141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55622143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27811070 + 27811071.

It is an arithmetic number, because the mean of its divisors is an integer number (27811071).

Almost surely, 2^55622141 is an apocalyptic number.

It is an amenable number.

55622141 is a deficient number, since it is larger than the sum of its proper divisors (1).

55622141 is an equidigital number, since it uses as much as digits as its factorization.

55622141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 55622141 is about 7458.0252748298. The cubic root of 55622141 is about 381.7237959354.

Adding to 55622141 its reverse (14122655), we get a palindrome (69744796).

The spelling of 55622141 in words is "fifty-five million, six hundred twenty-two thousand, one hundred forty-one".