50729879 has 4 divisors (see below), whose sum is σ = 50860680. Its totient is φ = 50599080.

The previous prime is 50729863. The next prime is 50729897. The reversal of 50729879 is 97892705.

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

It is a cyclic number.

It is not a de Polignac number, because 50729879 - 2⁴ = 50729863 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 (50729839) 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, 64817 + ... + 65594.

It is an arithmetic number, because the mean of its divisors is an integer number (12715170).

Almost surely, 2^50729879 is an apocalyptic number.

50729879 is a deficient number, since it is larger than the sum of its proper divisors (130801).

50729879 is a wasteful number, since it uses less digits than its factorization.

50729879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130800.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 50729879 is about 7122.4910670355. The cubic root of 50729879 is about 370.1870955398.

The spelling of 50729879 in words is "fifty million, seven hundred twenty-nine thousand, eight hundred seventy-nine".