525257527 has 6 divisors (see below), whose sum is σ = 554358048. Its totient is φ = 497612052.

The previous prime is 525257497. The next prime is 525257531. The reversal of 525257527 is 725752525.

It is not a de Polignac number, because 525257527 - 2¹⁵ = 525224759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525257527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525257597) 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 5 ways as a sum of consecutive naturals, for example, 727143 + ... + 727864.

It is an arithmetic number, because the mean of its divisors is an integer number (92393008).

Almost surely, 2^525257527 is an apocalyptic number.

525257527 is a deficient number, since it is larger than the sum of its proper divisors (29100521).

525257527 is a wasteful number, since it uses less digits than its factorization.

525257527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455045 (or 1455026 counting only the distinct ones).

The product of its digits is 245000, while the sum is 40.

The square root of 525257527 is about 22918.4974856556. The cubic root of 525257527 is about 806.8462066691.

The spelling of 525257527 in words is "five hundred twenty-five million, two hundred fifty-seven thousand, five hundred twenty-seven".