431222425 has 12 divisors (see below), whose sum is σ = 566170236. Its totient is φ = 324684800.

The previous prime is 431222417. The next prime is 431222471. The reversal of 431222425 is 524222134.

It can be written as a sum of positive squares in 6 ways, for example, as 32501401 + 398721024 = 5701^2 + 19968^2 .

It is not a de Polignac number, because 431222425 - 2³ = 431222417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431222425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506896 + ... + 507745.

It is an arithmetic number, because the mean of its divisors is an integer number (47180853).

Almost surely, 2^431222425 is an apocalyptic number.

It is an amenable number.

431222425 is a deficient number, since it is larger than the sum of its proper divisors (134947811).

431222425 is a wasteful number, since it uses less digits than its factorization.

431222425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014668 (or 1014663 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 431222425 is about 20765.8957187019. The cubic root of 431222425 is about 755.4988005435.

Adding to 431222425 its reverse (524222134), we get a palindrome (955444559).

The spelling of 431222425 in words is "four hundred thirty-one million, two hundred twenty-two thousand, four hundred twenty-five".