50979969 has 16 divisors (see below), whose sum is σ = 77568640. Its totient is φ = 33067440.

The previous prime is 50979967. The next prime is 50979977. The reversal of 50979969 is 96997905.

50979969 is a `hidden beast` number, since 509 + 79 + 9 + 69 = 666.

It is not a de Polignac number, because 50979969 - 2¹ = 50979967 is a prime.

It is a super-2 number, since 2×50979969² = 5197914478481922, which contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 24517 + ... + 26514.

It is an arithmetic number, because the mean of its divisors is an integer number (4848040).

Almost surely, 2^50979969 is an apocalyptic number.

It is an amenable number.

50979969 is a deficient number, since it is larger than the sum of its proper divisors (26588671).

50979969 is a wasteful number, since it uses less digits than its factorization.

50979969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51077 (or 51071 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 50979969 is about 7140.0258402894. The cubic root of 50979969 is about 370.7944192246.

The spelling of 50979969 in words is "fifty million, nine hundred seventy-nine thousand, nine hundred sixty-nine".