50509449 has 27 divisors (see below), whose sum is σ = 77015757. Its totient is φ = 31896216.

The previous prime is 50509441. The next prime is 50509453. The reversal of 50509449 is 94490505.

The square root of 50509449 is 7107.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 50509449 - 2³ = 50509441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50509441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 490332 + ... + 490434.

Almost surely, 2^50509449 is an apocalyptic number.

50509449 is the 7107-th square number.

50509449 is the 3554-th centered octagonal number.

It is an amenable number.

50509449 is a deficient number, since it is larger than the sum of its proper divisors (26506308).

50509449 is a wasteful number, since it uses less digits than its factorization.

50509449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The cubic root of 50509449 is about 369.6501416554.

Multiplying 50509449 by its sum of digits (36), we get a square (1818340164 = 42642²).

Multiplying 50509449 by its product of nonzero digits (32400), we get a square (1636506147600 = 1279260²).

The spelling of 50509449 in words is "fifty million, five hundred nine thousand, four hundred forty-nine".