425603425 has 12 divisors (see below), whose sum is σ = 568344700. Its totient is φ = 314291520.

The previous prime is 425603393. The next prime is 425603447. The reversal of 425603425 is 524306524.

It can be written as a sum of positive squares in 6 ways, for example, as 16916769 + 408686656 = 4113^2 + 20216^2 .

It is not a de Polignac number, because 425603425 - 2⁵ = 425603393 is a prime.

It is a super-2 number, since 2×425603425² = 362276550743461250, which contains 22 as substring.

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, 654450 + ... + 655099.

Almost surely, 2^425603425 is an apocalyptic number.

It is an amenable number.

425603425 is a deficient number, since it is larger than the sum of its proper divisors (142741275).

425603425 is a wasteful number, since it uses less digits than its factorization.

425603425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309572 (or 1309567 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 425603425 is about 20630.1581428742. The cubic root of 425603425 is about 752.2029599913.

Adding to 425603425 its reverse (524306524), we get a palindrome (949909949).

The spelling of 425603425 in words is "four hundred twenty-five million, six hundred three thousand, four hundred twenty-five".