50513313 has 8 divisors (see below), whose sum is σ = 70279488. Its totient is φ = 32211344.

The previous prime is 50513279. The next prime is 50513317. The reversal of 50513313 is 31331505.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 50513313 - 2⁶ = 50513249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50513313.

It is not an unprimeable number, because it can be changed into a prime (50513317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365970 + ... + 366107.

It is an arithmetic number, because the mean of its divisors is an integer number (8784936).

Almost surely, 2^50513313 is an apocalyptic number.

It is an amenable number.

50513313 is a deficient number, since it is larger than the sum of its proper divisors (19766175).

50513313 is a wasteful number, since it uses less digits than its factorization.

50513313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732103.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 50513313 is about 7107.2718394613. The cubic root of 50513313 is about 369.6595675599.

Adding to 50513313 its reverse (31331505), we get a palindrome (81844818).

The spelling of 50513313 in words is "fifty million, five hundred thirteen thousand, three hundred thirteen".