50855555 has 4 divisors (see below), whose sum is σ = 61026672. Its totient is φ = 40684440.

The previous prime is 50855549. The next prime is 50855561. The reversal of 50855555 is 55555805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55555805 = 5 ⋅11111161.

It is an interprime number because it is at equal distance from previous prime (50855549) and next prime (50855561).

It is a de Polignac number, because none of the positive numbers 2^k-50855555 is a prime.

It is a Duffinian number.

50855555 is a modest number, since divided by 5555 gives 5085 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085551 + ... + 5085560.

It is an arithmetic number, because the mean of its divisors is an integer number (15256668).

Almost surely, 2^50855555 is an apocalyptic number.

50855555 is a deficient number, since it is larger than the sum of its proper divisors (10171117).

50855555 is a wasteful number, since it uses less digits than its factorization.

50855555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171116.

The product of its (nonzero) digits is 125000, while the sum is 38.

The square root of 50855555 is about 7131.3080847766. The cubic root of 50855555 is about 370.4925385948.

The spelling of 50855555 in words is "fifty million, eight hundred fifty-five thousand, five hundred fifty-five".