425221253 has 4 divisors (see below), whose sum is σ = 425651328. Its totient is φ = 424791180.

The previous prime is 425221249. The next prime is 425221261. The reversal of 425221253 is 352122524.

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 425221253 - 2² = 425221249 is a prime.

It is a super-2 number, since 2×425221253² = 361626228005780018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425221243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213551 + ... + 215532.

It is an arithmetic number, because the mean of its divisors is an integer number (106412832).

Almost surely, 2^425221253 is an apocalyptic number.

It is an amenable number.

425221253 is a deficient number, since it is larger than the sum of its proper divisors (430075).

425221253 is an equidigital number, since it uses as much as digits as its factorization.

425221253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430074.

The product of its digits is 4800, while the sum is 26.

The square root of 425221253 is about 20620.8936033335. The cubic root of 425221253 is about 751.9777448569.

Adding to 425221253 its reverse (352122524), we get a palindrome (777343777).

The spelling of 425221253 in words is "four hundred twenty-five million, two hundred twenty-one thousand, two hundred fifty-three".