263530425 has 12 divisors (see below), whose sum is σ = 435703760. Its totient is φ = 140549520.

The previous prime is 263530417. The next prime is 263530523. The reversal of 263530425 is 524035362.

It is not a de Polignac number, because 263530425 - 2³ = 263530417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263530392 and 263530401.

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, 1756795 + ... + 1756944.

Almost surely, 2^263530425 is an apocalyptic number.

263530425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263530425 is a deficient number, since it is larger than the sum of its proper divisors (172173335).

263530425 is a wasteful number, since it uses less digits than its factorization.

263530425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513752 (or 3513747 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 263530425 is about 16233.6202062263. The cubic root of 263530425 is about 641.1262923057.

Adding to 263530425 its reverse (524035362), we get a palindrome (787565787).

The spelling of 263530425 in words is "two hundred sixty-three million, five hundred thirty thousand, four hundred twenty-five".