525430727 has 4 divisors (see below), whose sum is σ = 528153360. Its totient is φ = 522708096.

The previous prime is 525430721. The next prime is 525430793. The reversal of 525430727 is 727034525.

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 525430727 - 2¹⁴ = 525414343 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525430721) 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, 1361027 + ... + 1361412.

It is an arithmetic number, because the mean of its divisors is an integer number (132038340).

Almost surely, 2^525430727 is an apocalyptic number.

525430727 is a deficient number, since it is larger than the sum of its proper divisors (2722633).

525430727 is a wasteful number, since it uses less digits than its factorization.

525430727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722632.

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 525430727 is about 22922.2757814315. The cubic root of 525430727 is about 806.9348808899.

The spelling of 525430727 in words is "five hundred twenty-five million, four hundred thirty thousand, seven hundred twenty-seven".