263442025 has 48 divisors (see below), whose sum is σ = 411402240. Its totient is φ = 162561600.

The previous prime is 263442019. The next prime is 263442041. The reversal of 263442025 is 520244362.

It is not a de Polignac number, because 263442025 - 2³ = 263442017 is a prime.

It is a super-2 number, since 2×263442025² = 138803401072201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263441984 and 263442002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205336 + ... + 206614.

It is an arithmetic number, because the mean of its divisors is an integer number (8570880).

Almost surely, 2^263442025 is an apocalyptic number.

263442025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263442025 is a deficient number, since it is larger than the sum of its proper divisors (147960215).

263442025 is a wasteful number, since it uses less digits than its factorization.

263442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 263442025 is about 16230.8972333633. The cubic root of 263442025 is about 641.0545967225.

Adding to 263442025 its reverse (520244362), we get a palindrome (783686387).

The spelling of 263442025 in words is "two hundred sixty-three million, four hundred forty-two thousand, twenty-five".