263932825 has 12 divisors (see below), whose sum is σ = 352452268. Its totient is φ = 194904000.

The previous prime is 263932817. The next prime is 263932831. The reversal of 263932825 is 528239362.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 30118144 + 233814681 = 5488^2 + 15291^2 .

It is not a de Polignac number, because 263932825 - 2³ = 263932817 is a prime.

It is a super-2 number, since 2×263932825² = 139321072224961250, which contains 22 as substring.

It is a Duffinian number.

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, 405726 + ... + 406375.

Almost surely, 2^263932825 is an apocalyptic number.

263932825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263932825 is a deficient number, since it is larger than the sum of its proper divisors (88519443).

263932825 is a wasteful number, since it uses less digits than its factorization.

263932825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812124 (or 812119 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 263932825 is about 16246.0095100305. The cubic root of 263932825 is about 641.4524507476.

The spelling of 263932825 in words is "two hundred sixty-three million, nine hundred thirty-two thousand, eight hundred twenty-five".