50021313 has 8 divisors (see below), whose sum is σ = 66814176. Its totient is φ = 33288000.

The previous prime is 50021287. The next prime is 50021339. The reversal of 50021313 is 31312005.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50021287) and next prime (50021339).

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

It is not a de Polignac number, because 50021313 - 2⁶ = 50021249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50021292 and 50021301.

It is not an unprimeable number, because it can be changed into a prime (50023313) 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, 12888 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (8351772).

Almost surely, 2^50021313 is an apocalyptic number.

It is an amenable number.

50021313 is a deficient number, since it is larger than the sum of its proper divisors (16792863).

50021313 is a wasteful number, since it uses less digits than its factorization.

50021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29775.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 50021313 is about 7072.5747079829. The cubic root of 50021313 is about 368.4554876038.

Adding to 50021313 its reverse (31312005), we get a palindrome (81333318).

The spelling of 50021313 in words is "fifty million, twenty-one thousand, three hundred thirteen".