263125534 has 16 divisors (see below), whose sum is σ = 453777408. Its totient is φ = 112091832.

The previous prime is 263125531. The next prime is 263125571. The reversal of 263125534 is 435521362.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 263125496 and 263125505.

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 7 ways as a sum of consecutive naturals, for example, 53934 + ... + 58609.

It is an arithmetic number, because the mean of its divisors is an integer number (28361088).

Almost surely, 2^263125534 is an apocalyptic number.

263125534 is a deficient number, since it is larger than the sum of its proper divisors (190651874).

263125534 is a wasteful number, since it uses less digits than its factorization.

263125534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112719.

The product of its digits is 21600, while the sum is 31.

The square root of 263125534 is about 16221.1446575142. The cubic root of 263125534 is about 640.7977795443.

Adding to 263125534 its reverse (435521362), we get a palindrome (698646896).

The spelling of 263125534 in words is "two hundred sixty-three million, one hundred twenty-five thousand, five hundred thirty-four".