50642855 has 4 divisors (see below), whose sum is σ = 60771432. Its totient is φ = 40514280.

The previous prime is 50642819. The next prime is 50642857. The reversal of 50642855 is 55824605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55824605 = 5 ⋅11164921.

It is not a de Polignac number, because 50642855 - 2⁶ = 50642791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50642857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5064281 + ... + 5064290.

It is an arithmetic number, because the mean of its divisors is an integer number (15192858).

Almost surely, 2^50642855 is an apocalyptic number.

50642855 is a deficient number, since it is larger than the sum of its proper divisors (10128577).

50642855 is a wasteful number, since it uses less digits than its factorization.

50642855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128576.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 50642855 is about 7116.3793462687. The cubic root of 50642855 is about 369.9752966219.

The spelling of 50642855 in words is "fifty million, six hundred forty-two thousand, eight hundred fifty-five".