55477871 has 2 divisors, whose sum is σ = 55477872. Its totient is φ = 55477870.

The previous prime is 55477867. The next prime is 55477897. The reversal of 55477871 is 17877455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55477871 - 2² = 55477867 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 (55477811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27738935 + 27738936.

It is an arithmetic number, because the mean of its divisors is an integer number (27738936).

Almost surely, 2^55477871 is an apocalyptic number.

55477871 is a deficient number, since it is larger than the sum of its proper divisors (1).

55477871 is an equidigital number, since it uses as much as digits as its factorization.

55477871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274400, while the sum is 44.

The square root of 55477871 is about 7448.3468635664. The cubic root of 55477871 is about 381.3934779869.

The spelling of 55477871 in words is "fifty-five million, four hundred seventy-seven thousand, eight hundred seventy-one".