50563613 has 4 divisors (see below), whose sum is σ = 50927520. Its totient is φ = 50199708.

The previous prime is 50563609. The next prime is 50563631. The reversal of 50563613 is 31636505.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31636505 = 5 ⋅6327301.

It is a cyclic number.

It is not a de Polignac number, because 50563613 - 2² = 50563609 is a prime.

It is a super-2 number, since 2×50563613² = 5113357919227538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50563633) 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 3 ways as a sum of consecutive naturals, for example, 181745 + ... + 182022.

It is an arithmetic number, because the mean of its divisors is an integer number (12731880).

Almost surely, 2^50563613 is an apocalyptic number.

It is an amenable number.

50563613 is a deficient number, since it is larger than the sum of its proper divisors (363907).

50563613 is a wasteful number, since it uses less digits than its factorization.

50563613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363906.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 50563613 is about 7110.8095882255. The cubic root of 50563613 is about 369.7822263652.

The spelling of 50563613 in words is "fifty million, five hundred sixty-three thousand, six hundred thirteen".