263111025 has 12 divisors (see below), whose sum is σ = 435010352. Its totient is φ = 140325840.

The previous prime is 263110999. The next prime is 263111041. The reversal of 263111025 is 520111362.

It is not a de Polignac number, because 263111025 - 2⁸ = 263110769 is a prime.

It is a super-2 number, since 2×263111025² = 138454822953101250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263110992 and 263111010.

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, 1753999 + ... + 1754148.

Almost surely, 2^263111025 is an apocalyptic number.

263111025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263111025 is a deficient number, since it is larger than the sum of its proper divisors (171899327).

263111025 is a wasteful number, since it uses less digits than its factorization.

263111025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508160 (or 3508155 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 263111025 is about 16220.6974264364. The cubic root of 263111025 is about 640.7860012551.

Adding to 263111025 its reverse (520111362), we get a palindrome (783222387).

The spelling of 263111025 in words is "two hundred sixty-three million, one hundred eleven thousand, twenty-five".