250225121 has 2 divisors, whose sum is σ = 250225122. Its totient is φ = 250225120.

The previous prime is 250225099. The next prime is 250225123. The reversal of 250225121 is 121522052.

It is a happy number.

250225121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246144721 + 4080400 = 15689^2 + 2020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250225121 is a prime.

It is a super-2 number, since 2×250225121² = 125225222358929282, which contains 22 as substring.

Together with 250225123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 250225093 and 250225102.

It is not a weakly prime, because it can be changed into another prime (250225123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125112560 + 125112561.

It is an arithmetic number, because the mean of its divisors is an integer number (125112561).

Almost surely, 2^250225121 is an apocalyptic number.

It is an amenable number.

250225121 is a deficient number, since it is larger than the sum of its proper divisors (1).

250225121 is an equidigital number, since it uses as much as digits as its factorization.

250225121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 250225121 is about 15818.5056500290. The cubic root of 250225121 is about 630.1495580095.

Adding to 250225121 its reverse (121522052), we get a palindrome (371747173).

The spelling of 250225121 in words is "two hundred fifty million, two hundred twenty-five thousand, one hundred twenty-one".