50520313 has 4 divisors (see below), whose sum is σ = 51695248. Its totient is φ = 49345380.

The previous prime is 50520299. The next prime is 50520319. The reversal of 50520313 is 31302505.

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 a de Polignac number, because none of the positive numbers 2^k-50520313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50520319) 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, 587403 + ... + 587488.

It is an arithmetic number, because the mean of its divisors is an integer number (12923812).

Almost surely, 2^50520313 is an apocalyptic number.

It is an amenable number.

50520313 is a deficient number, since it is larger than the sum of its proper divisors (1174935).

50520313 is a wasteful number, since it uses less digits than its factorization.

50520313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174934.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 50520313 is about 7107.7642757762. The cubic root of 50520313 is about 369.6766422497.

Adding to 50520313 its reverse (31302505), we get a palindrome (81822818).

The spelling of 50520313 in words is "fifty million, five hundred twenty thousand, three hundred thirteen".