263125530 has 32 divisors (see below), whose sum is σ = 701668800. Its totient is φ = 70166736.

The previous prime is 263125501. The next prime is 263125531. The reversal of 263125530 is 35521362.

263125530 is a `hidden beast` number, since 2 + 6 + 3 + 125 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 263125494 and 263125503.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487000 + ... + 487539.

It is an arithmetic number, because the mean of its divisors is an integer number (21927150).

Almost surely, 2^263125530 is an apocalyptic number.

263125530 is an abundant number, since it is smaller than the sum of its proper divisors (438543270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263125530 is a wasteful number, since it uses less digits than its factorization.

263125530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974555 (or 974549 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 263125530 is about 16221.1445342183. The cubic root of 263125530 is about 640.7977762972.

Adding to 263125530 its reverse (35521362), we get a palindrome (298646892).

The spelling of 263125530 in words is "two hundred sixty-three million, one hundred twenty-five thousand, five hundred thirty".