55105847 has 2 divisors, whose sum is σ = 55105848. Its totient is φ = 55105846.

The previous prime is 55105837. The next prime is 55105937. The reversal of 55105847 is 74850155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55105847 - 2⁸ = 55105591 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55105837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27552923 + 27552924.

It is an arithmetic number, because the mean of its divisors is an integer number (27552924).

Almost surely, 2^55105847 is an apocalyptic number.

55105847 is a deficient number, since it is larger than the sum of its proper divisors (1).

55105847 is an equidigital number, since it uses as much as digits as its factorization.

55105847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55105847 is about 7423.3312602901. The cubic root of 55105847 is about 380.5390479927.

The spelling of 55105847 in words is "fifty-five million, one hundred five thousand, eight hundred forty-seven".