50567987 has 4 divisors (see below), whose sum is σ = 53229480. Its totient is φ = 47906496.

The previous prime is 50567981. The next prime is 50568017. The reversal of 50567987 is 78976505.

It is a happy number.

50567987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78976505 = 5 ⋅15795301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50567987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50567981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330718 + ... + 1330755.

It is an arithmetic number, because the mean of its divisors is an integer number (13307370).

Almost surely, 2^50567987 is an apocalyptic number.

50567987 is a deficient number, since it is larger than the sum of its proper divisors (2661493).

50567987 is a wasteful number, since it uses less digits than its factorization.

50567987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661492.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 50567987 is about 7111.1171414905. The cubic root of 50567987 is about 369.7928887152.

The spelling of 50567987 in words is "fifty million, five hundred sixty-seven thousand, nine hundred eighty-seven".