525216587 has 16 divisors (see below), whose sum is σ = 615293952. Its totient is φ = 438972480.

The previous prime is 525216557. The next prime is 525216589. The reversal of 525216587 is 785612525.

It is not a de Polignac number, because 525216587 - 2²² = 521022283 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (525216589) 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, 90287 + ... + 95927.

It is an arithmetic number, because the mean of its divisors is an integer number (38455872).

Almost surely, 2^525216587 is an apocalyptic number.

525216587 is a deficient number, since it is larger than the sum of its proper divisors (90077365).

525216587 is a wasteful number, since it uses less digits than its factorization.

525216587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978.

The product of its digits is 168000, while the sum is 41.

The square root of 525216587 is about 22917.6043032425. The cubic root of 525216587 is about 806.8252435287.

The spelling of 525216587 in words is "five hundred twenty-five million, two hundred sixteen thousand, five hundred eighty-seven".