263125533 has 16 divisors (see below), whose sum is σ = 383950656. Its totient is φ = 158960640.

The previous prime is 263125531. The next prime is 263125571. The reversal of 263125533 is 335521362.

It is not a de Polignac number, because 263125533 - 2¹ = 263125531 is a prime.

It is a super-2 number, since 2×263125533² = 138470092233068178, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 263125533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263125531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2116 + ... + 23037.

It is an arithmetic number, because the mean of its divisors is an integer number (23996916).

Almost surely, 2^263125533 is an apocalyptic number.

It is an amenable number.

263125533 is a deficient number, since it is larger than the sum of its proper divisors (120825123).

263125533 is a wasteful number, since it uses less digits than its factorization.

263125533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25484.

The product of its digits is 16200, while the sum is 30.

The square root of 263125533 is about 16221.1446266902. The cubic root of 263125533 is about 640.7977787325.

Adding to 263125533 its reverse (335521362), we get a palindrome (598646895).

The spelling of 263125533 in words is "two hundred sixty-three million, one hundred twenty-five thousand, five hundred thirty-three".