55678871 has 2 divisors, whose sum is σ = 55678872. Its totient is φ = 55678870.

The previous prime is 55678849. The next prime is 55678907. The reversal of 55678871 is 17887655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55678871 - 2¹⁴ = 55662487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55671871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27839435 + 27839436.

It is an arithmetic number, because the mean of its divisors is an integer number (27839436).

Almost surely, 2^55678871 is an apocalyptic number.

55678871 is a deficient number, since it is larger than the sum of its proper divisors (1).

55678871 is an equidigital number, since it uses as much as digits as its factorization.

55678871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 47.

The square root of 55678871 is about 7461.8275911468. The cubic root of 55678871 is about 381.8535274449.

The spelling of 55678871 in words is "fifty-five million, six hundred seventy-eight thousand, eight hundred seventy-one".