663411425 has 12 divisors (see below), whose sum is σ = 858397440. Its totient is φ = 507653520.

The previous prime is 663411407. The next prime is 663411457. The reversal of 663411425 is 524114366.

It is not a de Polignac number, because 663411425 - 2¹⁸ = 663149281 is a prime.

It is a super-2 number, since 2×663411425² = 880229437641061250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 663411391 and 663411400.

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, 576305 + ... + 577454.

It is an arithmetic number, because the mean of its divisors is an integer number (71533120).

Almost surely, 2^663411425 is an apocalyptic number.

It is an amenable number.

663411425 is a deficient number, since it is larger than the sum of its proper divisors (194986015).

663411425 is a wasteful number, since it uses less digits than its factorization.

663411425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153792 (or 1153787 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 663411425 is about 25756.7743516148. The cubic root of 663411425 is about 872.1562864286.

The spelling of 663411425 in words is "six hundred sixty-three million, four hundred eleven thousand, four hundred twenty-five".