50776777 has 4 divisors (see below), whose sum is σ = 51042816. Its totient is φ = 50510740.

The previous prime is 50776771. The next prime is 50776787. The reversal of 50776777 is 77767705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50776777 - 2¹¹ = 50774729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50776771) 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, 132733 + ... + 133114.

It is an arithmetic number, because the mean of its divisors is an integer number (12760704).

Almost surely, 2^50776777 is an apocalyptic number.

It is an amenable number.

50776777 is a deficient number, since it is larger than the sum of its proper divisors (266039).

50776777 is a wasteful number, since it uses less digits than its factorization.

50776777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266038.

The product of its (nonzero) digits is 504210, while the sum is 46.

The square root of 50776777 is about 7125.7825535165. The cubic root of 50776777 is about 370.3011354153.

It can be divided in two parts, 507 and 76777, that added together give a square (77284 = 278²).

The spelling of 50776777 in words is "fifty million, seven hundred seventy-six thousand, seven hundred seventy-seven".