10250021 has 8 divisors (see below), whose sum is σ = 10639200. Its totient is φ = 9863280.

The previous prime is 10250017. The next prime is 10250027. The reversal of 10250021 is 12005201.

10250021 is digitally balanced in base 2 and base 3, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 10250021 - 2² = 10250017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10249984 and 10250011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10250027) 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, 16250 + ... + 16868.

It is an arithmetic number, because the mean of its divisors is an integer number (1329900).

Almost surely, 2^10250021 is an apocalyptic number.

It is an amenable number.

10250021 is a deficient number, since it is larger than the sum of its proper divisors (389179).

10250021 is an equidigital number, since it uses as much as digits as its factorization.

10250021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 10250021 is about 3201.5653983637. The cubic root of 10250021 is about 217.2242226365.

Adding to 10250021 its reverse (12005201), we get a palindrome (22255222).

The spelling of 10250021 in words is "ten million, two hundred fifty thousand, twenty-one".