525014321 has 8 divisors (see below), whose sum is σ = 573146280. Its totient is φ = 477988992.

The previous prime is 525014309. The next prime is 525014351. The reversal of 525014321 is 123410525.

It can be written as a sum of positive squares in 4 ways, for example, as 15880225 + 509134096 = 3985^2 + 22564^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-525014321 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (525014351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275666 + ... + 277563.

It is an arithmetic number, because the mean of its divisors is an integer number (71643285).

Almost surely, 2^525014321 is an apocalyptic number.

It is an amenable number.

525014321 is a deficient number, since it is larger than the sum of its proper divisors (48131959).

525014321 is a wasteful number, since it uses less digits than its factorization.

525014321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553315.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 525014321 is about 22913.1909824887. The cubic root of 525014321 is about 806.7216581556.

Adding to 525014321 its reverse (123410525), we get a palindrome (648424846).

The spelling of 525014321 in words is "five hundred twenty-five million, fourteen thousand, three hundred twenty-one".