50979966 has 8 divisors (see below), whose sum is σ = 101959944. Its totient is φ = 16993320.

The previous prime is 50979947. The next prime is 50979967. The reversal of 50979966 is 66997905.

It is a sphenic number, since it is the product of 3 distinct primes.

50979966 is an admirable number.

It is a super-2 number, since 2×50979966² = 5197913866722312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50979967) 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, 4248325 + ... + 4248336.

It is an arithmetic number, because the mean of its divisors is an integer number (12744993).

Almost surely, 2^50979966 is an apocalyptic number.

50979966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50979966 is a wasteful number, since it uses less digits than its factorization.

50979966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8496666.

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 50979966 is about 7140.0256302061. The cubic root of 50979966 is about 370.7944119512.

The spelling of 50979966 in words is "fifty million, nine hundred seventy-nine thousand, nine hundred sixty-six".