263251025 has 6 divisors (see below), whose sum is σ = 326431302. Its totient is φ = 210600800.

The previous prime is 263251007. The next prime is 263251033. The reversal of 263251025 is 520152362.

263251025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 94458961 + 168792064 = 9719^2 + 12992^2 .

It is not a de Polignac number, because 263251025 - 2⁸ = 263250769 is a prime.

It is a super-2 number, since 2×263251025² = 138602204327101250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 263250985 and 263251003.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5264996 + ... + 5265045.

It is an arithmetic number, because the mean of its divisors is an integer number (54405217).

Almost surely, 2^263251025 is an apocalyptic number.

263251025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263251025 is a deficient number, since it is larger than the sum of its proper divisors (63180277).

263251025 is a wasteful number, since it uses less digits than its factorization.

263251025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10530051 (or 10530046 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 263251025 is about 16225.0123266517. The cubic root of 263251025 is about 640.8996340628.

The spelling of 263251025 in words is "two hundred sixty-three million, two hundred fifty-one thousand, twenty-five".