50865823 has 4 divisors (see below), whose sum is σ = 52506688. Its totient is φ = 49224960.

The previous prime is 50865817. The next prime is 50865827. The reversal of 50865823 is 32856805.

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 50865823 - 2¹⁷ = 50734751 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 (50865827) 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, 820386 + ... + 820447.

It is an arithmetic number, because the mean of its divisors is an integer number (13126672).

Almost surely, 2^50865823 is an apocalyptic number.

50865823 is a deficient number, since it is larger than the sum of its proper divisors (1640865).

50865823 is a wasteful number, since it uses less digits than its factorization.

50865823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640864.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 50865823 is about 7132.0279724634. The cubic root of 50865823 is about 370.5174717044.

The spelling of 50865823 in words is "fifty million, eight hundred sixty-five thousand, eight hundred twenty-three".