49509775 has 12 divisors (see below), whose sum is σ = 70162672. Its totient is φ = 33949440.

The previous prime is 49509773. The next prime is 49509781. The reversal of 49509775 is 57790594.

It is a happy number.

It is not a de Polignac number, because 49509775 - 2¹ = 49509773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49509773) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 141282 + ... + 141631.

Almost surely, 2^49509775 is an apocalyptic number.

49509775 is a deficient number, since it is larger than the sum of its proper divisors (20652897).

49509775 is a wasteful number, since it uses less digits than its factorization.

49509775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282930 (or 282925 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 49509775 is about 7036.3182844439. The cubic root of 49509775 is about 367.1951905134.

The spelling of 49509775 in words is "forty-nine million, five hundred nine thousand, seven hundred seventy-five".