50839969 has 4 divisors (see below), whose sum is σ = 52480000. Its totient is φ = 49199940.

The previous prime is 50839967. The next prime is 50839981. The reversal of 50839969 is 96993805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50839969 - 2¹ = 50839967 is a prime.

It is a super-2 number, since 2×50839969² = 5169404895841922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50839963) 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 in 3 ways as a sum of consecutive naturals, for example, 819969 + ... + 820030.

It is an arithmetic number, because the mean of its divisors is an integer number (13120000).

Almost surely, 2^50839969 is an apocalyptic number.

It is an amenable number.

50839969 is a deficient number, since it is larger than the sum of its proper divisors (1640031).

50839969 is a wasteful number, since it uses less digits than its factorization.

50839969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640030.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 50839969 is about 7130.2152141433. The cubic root of 50839969 is about 370.4546857209.

The spelling of 50839969 in words is "fifty million, eight hundred thirty-nine thousand, nine hundred sixty-nine".