49779565 has 8 divisors (see below), whose sum is σ = 65166048. Its totient is φ = 36203280.

The previous prime is 49779547. The next prime is 49779571. The reversal of 49779565 is 56597794.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49779565 - 2⁷ = 49779437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452487 + ... + 452596.

It is an arithmetic number, because the mean of its divisors is an integer number (8145756).

Almost surely, 2^49779565 is an apocalyptic number.

It is an amenable number.

49779565 is a deficient number, since it is larger than the sum of its proper divisors (15386483).

49779565 is a wasteful number, since it uses less digits than its factorization.

49779565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905099.

The product of its digits is 2381400, while the sum is 52.

The square root of 49779565 is about 7055.4634858385. The cubic root of 49779565 is about 367.8609593076.

The spelling of 49779565 in words is "forty-nine million, seven hundred seventy-nine thousand, five hundred sixty-five".