525731434 has 4 divisors (see below), whose sum is σ = 788597154. Its totient is φ = 262865716.

The previous prime is 525731419. The next prime is 525731497. The reversal of 525731434 is 434137525.

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

It can be written as a sum of positive squares in only one way, i.e., 318515409 + 207216025 = 17847^2 + 14395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 525731434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131432857 + ... + 131432860.

Almost surely, 2^525731434 is an apocalyptic number.

525731434 is a deficient number, since it is larger than the sum of its proper divisors (262865720).

525731434 is a wasteful number, since it uses less digits than its factorization.

525731434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262865719.

The product of its digits is 50400, while the sum is 34.

The square root of 525731434 is about 22928.8341177653. The cubic root of 525731434 is about 807.0887893434.

Adding to 525731434 its reverse (434137525), we get a palindrome (959868959).

The spelling of 525731434 in words is "five hundred twenty-five million, seven hundred thirty-one thousand, four hundred thirty-four".