525232223 has 4 divisors (see below), whose sum is σ = 526618440. Its totient is φ = 523846008.

The previous prime is 525232193. The next prime is 525232277. The reversal of 525232223 is 322232525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525232223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525232192 and 525232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525232283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692540 + ... + 693297.

It is an arithmetic number, because the mean of its divisors is an integer number (131654610).

Almost surely, 2^525232223 is an apocalyptic number.

525232223 is a deficient number, since it is larger than the sum of its proper divisors (1386217).

525232223 is a wasteful number, since it uses less digits than its factorization.

525232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386216.

The product of its digits is 7200, while the sum is 26.

The square root of 525232223 is about 22917.9454358370. The cubic root of 525232223 is about 806.8332499998.

Adding to 525232223 its reverse (322232525), we get a palindrome (847464748).

The spelling of 525232223 in words is "five hundred twenty-five million, two hundred thirty-two thousand, two hundred twenty-three".