250021313 has 4 divisors (see below), whose sum is σ = 250100400. Its totient is φ = 249942228.

The previous prime is 250021279. The next prime is 250021327. The reversal of 250021313 is 313120052.

250021313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 250021313 - 2¹⁰ = 250020289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250021291 and 250021300.

It is not an unprimeable number, because it can be changed into a prime (250021613) 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, 34595 + ... + 41192.

It is an arithmetic number, because the mean of its divisors is an integer number (62525100).

Almost surely, 2^250021313 is an apocalyptic number.

It is an amenable number.

250021313 is a deficient number, since it is larger than the sum of its proper divisors (79087).

250021313 is an equidigital number, since it uses as much as digits as its factorization.

250021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79086.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 250021313 is about 15812.0622627158. The cubic root of 250021313 is about 629.9784262370.

Adding to 250021313 its reverse (313120052), we get a palindrome (563141365).

The spelling of 250021313 in words is "two hundred fifty million, twenty-one thousand, three hundred thirteen".