50509640 has 16 divisors (see below), whose sum is σ = 113646780. Its totient is φ = 20203840.

The previous prime is 50509639. The next prime is 50509687. The reversal of 50509640 is 4690505.

It can be written as a sum of positive squares in 2 ways, for example, as 44169316 + 6340324 = 6646^2 + 2518^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 631331 + ... + 631410.

Almost surely, 2^50509640 is an apocalyptic number.

It is an amenable number.

50509640 is an abundant number, since it is smaller than the sum of its proper divisors (63137140).

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

50509640 is a wasteful number, since it uses less digits than its factorization.

50509640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262752 (or 1262748 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 50509640 is about 7107.0134374433. The cubic root of 50509640 is about 369.6506075952.

The spelling of 50509640 in words is "fifty million, five hundred nine thousand, six hundred forty".