50729894 has 4 divisors (see below), whose sum is σ = 76094844. Its totient is φ = 25364946.

The previous prime is 50729863. The next prime is 50729897. The reversal of 50729894 is 49892705.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50729897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12682472 + ... + 12682475.

It is an arithmetic number, because the mean of its divisors is an integer number (19023711).

Almost surely, 2^50729894 is an apocalyptic number.

50729894 is a deficient number, since it is larger than the sum of its proper divisors (25364950).

50729894 is a wasteful number, since it uses less digits than its factorization.

50729894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25364949.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 50729894 is about 7122.4921200378. The cubic root of 50729894 is about 370.1871320259.

The spelling of 50729894 in words is "fifty million, seven hundred twenty-nine thousand, eight hundred ninety-four".