50507621 has 6 divisors (see below), whose sum is σ = 50770566. Its totient is φ = 50245800.

The previous prime is 50507617. The next prime is 50507651. The reversal of 50507621 is 12670505.

50507621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39551521 + 10956100 = 6289^2 + 3310^2 .

It is not a de Polignac number, because 50507621 - 2² = 50507617 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 (50507651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109331 + ... + 109791.

It is an arithmetic number, because the mean of its divisors is an integer number (8461761).

Almost surely, 2^50507621 is an apocalyptic number.

It is an amenable number.

50507621 is a deficient number, since it is larger than the sum of its proper divisors (262945).

50507621 is an frugal number, since it uses more digits than its factorization.

50507621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 50507621 is about 7106.8713932363. The cubic root of 50507621 is about 369.6456822349.

The spelling of 50507621 in words is "fifty million, five hundred seven thousand, six hundred twenty-one".