50972138 has 8 divisors (see below), whose sum is σ = 87380832. Its totient is φ = 21845196.

The previous prime is 50972123. The next prime is 50972189. The reversal of 50972138 is 83127905.

50972138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50972098 and 50972107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820420 + ... + 1820447.

It is an arithmetic number, because the mean of its divisors is an integer number (10922604).

Almost surely, 2^50972138 is an apocalyptic number.

50972138 is a deficient number, since it is larger than the sum of its proper divisors (36408694).

50972138 is a wasteful number, since it uses less digits than its factorization.

50972138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640876.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 50972138 is about 7139.4774318573. The cubic root of 50972138 is about 370.7754324222.

It can be divided in two parts, 5097213 and 8, that multiplied together give a palindrome (40777704).

The spelling of 50972138 in words is "fifty million, nine hundred seventy-two thousand, one hundred thirty-eight".