50639854 has 4 divisors (see below), whose sum is σ = 75959784. Its totient is φ = 25319926.

The previous prime is 50639839. The next prime is 50639863. The reversal of 50639854 is 45893605.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12659962 + ... + 12659965.

It is an arithmetic number, because the mean of its divisors is an integer number (18989946).

Almost surely, 2^50639854 is an apocalyptic number.

50639854 is a deficient number, since it is larger than the sum of its proper divisors (25319930).

50639854 is a wasteful number, since it uses less digits than its factorization.

50639854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25319929.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 50639854 is about 7116.1684915409. The cubic root of 50639854 is about 369.9679884650.

The spelling of 50639854 in words is "fifty million, six hundred thirty-nine thousand, eight hundred fifty-four".