50887777 has 4 divisors (see below), whose sum is σ = 51182100. Its totient is φ = 50593456.

The previous prime is 50887769. The next prime is 50887801. The reversal of 50887777 is 77778805.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17986081 + 32901696 = 4241^2 + 5736^2 .

It is a cyclic number.

It is not a de Polignac number, because 50887777 - 2³ = 50887769 is a prime.

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 50887777.

It is not an unprimeable number, because it can be changed into a prime (50887717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146902 + ... + 147247.

It is an arithmetic number, because the mean of its divisors is an integer number (12795525).

Almost surely, 2^50887777 is an apocalyptic number.

It is an amenable number.

50887777 is a deficient number, since it is larger than the sum of its proper divisors (294323).

50887777 is a wasteful number, since it uses less digits than its factorization.

50887777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294322.

The product of its (nonzero) digits is 768320, while the sum is 49.

The square root of 50887777 is about 7133.5669198515. The cubic root of 50887777 is about 370.5707699054.

The spelling of 50887777 in words is "fifty million, eight hundred eighty-seven thousand, seven hundred seventy-seven".