49777636 has 12 divisors (see below), whose sum is σ = 87615612. Its totient is φ = 24744608.

The previous prime is 49777631. The next prime is 49777639. The reversal of 49777636 is 63677794.

It can be written as a sum of positive squares in 2 ways, for example, as 19307236 + 30470400 = 4394^2 + 5520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49777636.

It is not an unprimeable number, because it can be changed into a prime (49777631) 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, 35275 + ... + 36658.

It is an arithmetic number, because the mean of its divisors is an integer number (7301301).

Almost surely, 2^49777636 is an apocalyptic number.

It is an amenable number.

49777636 is a deficient number, since it is larger than the sum of its proper divisors (37837976).

49777636 is a wasteful number, since it uses less digits than its factorization.

49777636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72110 (or 72108 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 49.

The square root of 49777636 is about 7055.3267819428. The cubic root of 49777636 is about 367.8562076057.

The spelling of 49777636 in words is "forty-nine million, seven hundred seventy-seven thousand, six hundred thirty-six".