50986619 has 4 divisors (see below), whose sum is σ = 51118080. Its totient is φ = 50855160.

The previous prime is 50986613. The next prime is 50986627. The reversal of 50986619 is 91668905.

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 50986619 - 2¹² = 50982523 is a prime.

It is a super-2 number, since 2×50986619² = 5199270634102322, 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 50986619.

It is not an unprimeable number, because it can be changed into a prime (50986613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65147 + ... + 65924.

It is an arithmetic number, because the mean of its divisors is an integer number (12779520).

Almost surely, 2^50986619 is an apocalyptic number.

50986619 is a deficient number, since it is larger than the sum of its proper divisors (131461).

50986619 is a wasteful number, since it uses less digits than its factorization.

50986619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131460.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 50986619 is about 7140.4915096932. The cubic root of 50986619 is about 370.8105410840.

The spelling of 50986619 in words is "fifty million, nine hundred eighty-six thousand, six hundred nineteen".