50821629 has 4 divisors (see below), whose sum is σ = 67762176. Its totient is φ = 33881084.

The previous prime is 50821627. The next prime is 50821633. The reversal of 50821629 is 92612805.

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 50821629 - 2¹ = 50821627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50821629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50821621) 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 3 ways as a sum of consecutive naturals, for example, 8470269 + ... + 8470274.

It is an arithmetic number, because the mean of its divisors is an integer number (16940544).

Almost surely, 2^50821629 is an apocalyptic number.

It is an amenable number.

50821629 is a deficient number, since it is larger than the sum of its proper divisors (16940547).

50821629 is a wasteful number, since it uses less digits than its factorization.

50821629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940546.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 50821629 is about 7128.9290219499. The cubic root of 50821629 is about 370.4101344476.

The spelling of 50821629 in words is "fifty million, eight hundred twenty-one thousand, six hundred twenty-nine".