425442223 has 4 divisors (see below), whose sum is σ = 425487168. Its totient is φ = 425397280.

The previous prime is 425442203. The next prime is 425442341. The reversal of 425442223 is 322244524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425442223 is a prime.

It is a super-2 number, since 2×425442223² = 362002170222363458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425442191 and 425442200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425442203) 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, 2143 + ... + 29248.

It is an arithmetic number, because the mean of its divisors is an integer number (106371792).

Almost surely, 2^425442223 is an apocalyptic number.

425442223 is a deficient number, since it is larger than the sum of its proper divisors (44945).

425442223 is a wasteful number, since it uses less digits than its factorization.

425442223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44944.

The product of its digits is 15360, while the sum is 28.

The square root of 425442223 is about 20626.2508226774. The cubic root of 425442223 is about 752.1079796044.

Adding to 425442223 its reverse (322244524), we get a palindrome (747686747).

The spelling of 425442223 in words is "four hundred twenty-five million, four hundred forty-two thousand, two hundred twenty-three".