50613817 has 8 divisors (see below), whose sum is σ = 52318856. Its totient is φ = 48926592.

The previous prime is 50613779. The next prime is 50613821. The reversal of 50613817 is 71831605.

It can be written as a sum of positive squares in 4 ways, for example, as 27081616 + 23532201 = 5204^2 + 4851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50613817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50613847) 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 7 ways as a sum of consecutive naturals, for example, 1453 + ... + 10165.

It is an arithmetic number, because the mean of its divisors is an integer number (6539857).

Almost surely, 2^50613817 is an apocalyptic number.

50613817 is the 5809-th pentagonal number.

It is an amenable number.

50613817 is a deficient number, since it is larger than the sum of its proper divisors (1705039).

50613817 is a wasteful number, since it uses less digits than its factorization.

50613817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 50613817 is about 7114.3388308402. The cubic root of 50613817 is about 369.9045699835.

The spelling of 50613817 in words is "fifty million, six hundred thirteen thousand, eight hundred seventeen".