50979823 has 4 divisors (see below), whose sum is σ = 51552720. Its totient is φ = 50406928.

The previous prime is 50979809. The next prime is 50979833. The reversal of 50979823 is 32897905.

It is a happy number.

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 50979823 - 2¹³ = 50971631 is a prime.

It is a super-2 number, since 2×50979823² = 5197884706222658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50979823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50979833) 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, 286315 + ... + 286492.

It is an arithmetic number, because the mean of its divisors is an integer number (12888180).

Almost surely, 2^50979823 is an apocalyptic number.

50979823 is a deficient number, since it is larger than the sum of its proper divisors (572897).

50979823 is an equidigital number, since it uses as much as digits as its factorization.

50979823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572896.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 50979823 is about 7140.0156162294. The cubic root of 50979823 is about 370.7940652552.

The spelling of 50979823 in words is "fifty million, nine hundred seventy-nine thousand, eight hundred twenty-three".