263902765025 has 12 divisors (see below), whose sum is σ = 327277540992. Its totient is φ = 211097623440.

The previous prime is 263902765019. The next prime is 263902765043. The reversal of 263902765025 is 520567209362.

It is not a de Polignac number, because 263902765025 - 2³⁰ = 262829023201 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 (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394217 + ... + 826566.

It is an arithmetic number, because the mean of its divisors is an integer number (27273128416).

Almost surely, 2^263902765025 is an apocalyptic number.

263902765025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263902765025 is a deficient number, since it is larger than the sum of its proper divisors (63374775967).

263902765025 is a wasteful number, since it uses less digits than its factorization.

263902765025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229440 (or 1229435 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 263902765025 in words is "two hundred sixty-three billion, nine hundred two million, seven hundred sixty-five thousand, twenty-five".