263775025 has 6 divisors (see below), whose sum is σ = 327081062. Its totient is φ = 211020000.

The previous prime is 263775023. The next prime is 263775053. The reversal of 263775025 is 520577362.

It can be written as a sum of positive squares in 3 ways, for example, as 4210704 + 259564321 = 2052^2 + 16111^2 .

It is not a de Polignac number, because 263775025 - 2¹ = 263775023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263775023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5275476 + ... + 5275525.

Almost surely, 2^263775025 is an apocalyptic number.

263775025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263775025 is a deficient number, since it is larger than the sum of its proper divisors (63306037).

263775025 is a wasteful number, since it uses less digits than its factorization.

263775025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551011 (or 10551006 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 263775025 is about 16241.1522066632. The cubic root of 263775025 is about 641.3245881925.

The spelling of 263775025 in words is "two hundred sixty-three million, seven hundred seventy-five thousand, twenty-five".