663525086 has 16 divisors (see below), whose sum is σ = 1142487936. Its totient is φ = 283113816.

The previous prime is 663525077. The next prime is 663525097. The reversal of 663525086 is 680525366.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101216 + ... + 107571.

It is an arithmetic number, because the mean of its divisors is an integer number (71405496).

Almost surely, 2^663525086 is an apocalyptic number.

663525086 is a deficient number, since it is larger than the sum of its proper divisors (478962850).

663525086 is a wasteful number, since it uses less digits than its factorization.

663525086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209023.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 663525086 is about 25758.9806863548. The cubic root of 663525086 is about 872.2060918692.

The spelling of 663525086 in words is "six hundred sixty-three million, five hundred twenty-five thousand, eighty-six".