55204871 has 2 divisors, whose sum is σ = 55204872. Its totient is φ = 55204870.

The previous prime is 55204847. The next prime is 55204873. The reversal of 55204871 is 17840255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55204871 - 2¹⁰ = 55203847 is a prime.

It is a Sophie Germain prime.

Together with 55204873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55204873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27602435 + 27602436.

It is an arithmetic number, because the mean of its divisors is an integer number (27602436).

Almost surely, 2^55204871 is an apocalyptic number.

55204871 is a deficient number, since it is larger than the sum of its proper divisors (1).

55204871 is an equidigital number, since it uses as much as digits as its factorization.

55204871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 55204871 is about 7429.9980484520. The cubic root of 55204871 is about 380.7668517057.

The spelling of 55204871 in words is "fifty-five million, two hundred four thousand, eight hundred seventy-one".