425144433 has 24 divisors (see below), whose sum is σ = 662221440. Its totient is φ = 241903200.

The previous prime is 425144407. The next prime is 425144477. The reversal of 425144433 is 334441524.

It is not a de Polignac number, because 425144433 - 2¹² = 425140337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425144433.

It is not an unprimeable number, because it can be changed into a prime (425144833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29083 + ... + 41183.

It is an arithmetic number, because the mean of its divisors is an integer number (27592560).

Almost surely, 2^425144433 is an apocalyptic number.

It is an amenable number.

425144433 is a deficient number, since it is larger than the sum of its proper divisors (237077007).

425144433 is a wasteful number, since it uses less digits than its factorization.

425144433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12357 (or 12350 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 425144433 is about 20619.0308453138. The cubic root of 425144433 is about 751.9324583078.

Adding to 425144433 its reverse (334441524), we get a palindrome (759585957).

It can be divided in two parts, 4251 and 44433, that added together give a palindrome (48684).

The spelling of 425144433 in words is "four hundred twenty-five million, one hundred forty-four thousand, four hundred thirty-three".