425220241 has 4 divisors (see below), whose sum is σ = 426837312. Its totient is φ = 423603172.

The previous prime is 425220221. The next prime is 425220281. The reversal of 425220241 is 142022524.

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 425220241 - 2¹¹ = 425218193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425220221) 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, 808141 + ... + 808666.

It is an arithmetic number, because the mean of its divisors is an integer number (106709328).

Almost surely, 2^425220241 is an apocalyptic number.

It is an amenable number.

425220241 is a deficient number, since it is larger than the sum of its proper divisors (1617071).

425220241 is a wasteful number, since it uses less digits than its factorization.

425220241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617070.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 425220241 is about 20620.8690651000. The cubic root of 425220241 is about 751.9771483031.

Adding to 425220241 its reverse (142022524), we get a palindrome (567242765).

The spelling of 425220241 in words is "four hundred twenty-five million, two hundred twenty thousand, two hundred forty-one".