525305023 has 4 divisors (see below), whose sum is σ = 526313808. Its totient is φ = 524296240.

The previous prime is 525304999. The next prime is 525305057. The reversal of 525305023 is 320503525.

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

It is a cyclic number.

It is not a de Polignac number, because 525305023 - 2⁹ = 525304511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525315023) 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 3 ways as a sum of consecutive naturals, for example, 503611 + ... + 504652.

It is an arithmetic number, because the mean of its divisors is an integer number (131578452).

Almost surely, 2^525305023 is an apocalyptic number.

525305023 is a deficient number, since it is larger than the sum of its proper divisors (1008785).

525305023 is a wasteful number, since it uses less digits than its factorization.

525305023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008784.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 525305023 is about 22919.5336558142. The cubic root of 525305023 is about 806.8705254147.

Adding to 525305023 its reverse (320503525), we get a palindrome (845808548).

The spelling of 525305023 in words is "five hundred twenty-five million, three hundred five thousand, twenty-three".