50139836 has 6 divisors (see below), whose sum is σ = 87744720. Its totient is φ = 25069916.

The previous prime is 50139833. The next prime is 50139853. The reversal of 50139836 is 63893105.

It is a junction number, because it is equal to n+sod(n) for n = 50139796 and 50139805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6267476 + ... + 6267483.

It is an arithmetic number, because the mean of its divisors is an integer number (14624120).

Almost surely, 2^50139836 is an apocalyptic number.

It is an amenable number.

50139836 is a deficient number, since it is larger than the sum of its proper divisors (37604884).

50139836 is a wasteful number, since it uses less digits than its factorization.

50139836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12534963 (or 12534961 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 50139836 is about 7080.9488064807. The cubic root of 50139836 is about 368.7462703444.

The spelling of 50139836 in words is "fifty million, one hundred thirty-nine thousand, eight hundred thirty-six".