263252225 has 24 divisors (see below), whose sum is σ = 354997368. Its totient is φ = 192844800.

The previous prime is 263252183. The next prime is 263252281. The reversal of 263252225 is 522252362.

263252225 = 75² + 76² + ... + 924².

It can be written as a sum of positive squares in 12 ways, for example, as 6355441 + 256896784 = 2521^2 + 16028^2 .

It is not a de Polignac number, because 263252225 - 2⁶ = 263252161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7355 + ... + 24095.

It is an arithmetic number, because the mean of its divisors is an integer number (14791557).

Almost surely, 2^263252225 is an apocalyptic number.

263252225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263252225 is a deficient number, since it is larger than the sum of its proper divisors (91745143).

263252225 is a wasteful number, since it uses less digits than its factorization.

263252225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16805 (or 16800 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 263252225 is about 16225.0493065507. The cubic root of 263252225 is about 640.9006078841.

The spelling of 263252225 in words is "two hundred sixty-three million, two hundred fifty-two thousand, two hundred twenty-five".