263163425 has 48 divisors (see below), whose sum is σ = 387891840. Its totient is φ = 173352960.

The previous prime is 263163421. The next prime is 263163449. The reversal of 263163425 is 524361362.

It is not a de Polignac number, because 263163425 - 2² = 263163421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263163391 and 263163400.

It is not an unprimeable number, because it can be changed into a prime (263163421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 627866 + ... + 628284.

It is an arithmetic number, because the mean of its divisors is an integer number (8081080).

Almost surely, 2^263163425 is an apocalyptic number.

263163425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263163425 is a deficient number, since it is larger than the sum of its proper divisors (124728415).

263163425 is a wasteful number, since it uses less digits than its factorization.

263163425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 565 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 263163425 is about 16222.3125663390. The cubic root of 263163425 is about 640.8285371107.

The spelling of 263163425 in words is "two hundred sixty-three million, one hundred sixty-three thousand, four hundred twenty-five".