250021013 has 8 divisors (see below), whose sum is σ = 274123200. Its totient is φ = 226147680.

The previous prime is 250021003. The next prime is 250021021. The reversal of 250021013 is 310120052.

It is a happy number.

250021013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 250021013 - 2¹⁶ = 249955477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250021003) 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, 54920 + ... + 59297.

It is an arithmetic number, because the mean of its divisors is an integer number (34265400).

Almost surely, 2^250021013 is an apocalyptic number.

It is an amenable number.

250021013 is a deficient number, since it is larger than the sum of its proper divisors (24102187).

250021013 is a wasteful number, since it uses less digits than its factorization.

250021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114427.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 250021013 is about 15812.0527762843. The cubic root of 250021013 is about 629.9781742670.

Adding to 250021013 its reverse (310120052), we get a palindrome (560141065).

The spelling of 250021013 in words is "two hundred fifty million, twenty-one thousand, thirteen".