525540663427 has 16 divisors (see below), whose sum is σ = 566844348672. Its totient is φ = 484362946080.

The previous prime is 525540663413. The next prime is 525540663457. The reversal of 525540663427 is 724366045525.

It is a de Polignac number, because none of the positive numbers 2^k-525540663427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525540663457) 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 15 ways as a sum of consecutive naturals, for example, 22930908 + ... + 22953814.

It is an arithmetic number, because the mean of its divisors is an integer number (35427771792).

Almost surely, 2^525540663427 is an apocalyptic number.

525540663427 is a deficient number, since it is larger than the sum of its proper divisors (41303685245).

525540663427 is a wasteful number, since it uses less digits than its factorization.

525540663427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578.

The product of its (nonzero) digits is 6048000, while the sum is 49.

The spelling of 525540663427 in words is "five hundred twenty-five billion, five hundred forty million, six hundred sixty-three thousand, four hundred twenty-seven".