50564778 has 32 divisors (see below), whose sum is σ = 110911680. Its totient is φ = 15240960.

The previous prime is 50564771. The next prime is 50564807. The reversal of 50564778 is 87746505.

It is not an unprimeable number, because it can be changed into a prime (50564771) 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, 11058 + ... + 14946.

It is an arithmetic number, because the mean of its divisors is an integer number (3465990).

Almost surely, 2^50564778 is an apocalyptic number.

50564778 is an abundant number, since it is smaller than the sum of its proper divisors (60346902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50564778 is a wasteful number, since it uses less digits than its factorization.

50564778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 50564778 is about 7110.8915052896. The cubic root of 50564778 is about 369.7850663059.

The spelling of 50564778 in words is "fifty million, five hundred sixty-four thousand, seven hundred seventy-eight".