525450538 has 8 divisors (see below), whose sum is σ = 788791140. Its totient is φ = 262520160.

The previous prime is 525450511. The next prime is 525450539. The reversal of 525450538 is 835054525.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 516789289 + 8661249 = 22733^2 + 2943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 525450497 and 525450506.

It is not an unprimeable number, because it can be changed into a prime (525450539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99333 + ... + 104488.

Almost surely, 2^525450538 is an apocalyptic number.

525450538 is a deficient number, since it is larger than the sum of its proper divisors (263340602).

525450538 is a wasteful number, since it uses less digits than its factorization.

525450538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205112.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 525450538 is about 22922.7079115885. The cubic root of 525450538 is about 806.9450224019.

The spelling of 525450538 in words is "five hundred twenty-five million, four hundred fifty thousand, five hundred thirty-eight".