50640929 has 4 divisors (see below), whose sum is σ = 50669760. Its totient is φ = 50612100.

The previous prime is 50640893. The next prime is 50640937. The reversal of 50640929 is 92904605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50640929 - 2⁸ = 50640673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50640959) 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, 11597 + ... + 15354.

It is an arithmetic number, because the mean of its divisors is an integer number (12667440).

Almost surely, 2^50640929 is an apocalyptic number.

It is an amenable number.

50640929 is a deficient number, since it is larger than the sum of its proper divisors (28831).

50640929 is a wasteful number, since it uses less digits than its factorization.

50640929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28830.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 50640929 is about 7116.2440233595. The cubic root of 50640929 is about 369.9706063818.

The spelling of 50640929 in words is "fifty million, six hundred forty thousand, nine hundred twenty-nine".