663060825 has 108 divisors (see below), whose sum is σ = 1393541760. Its totient is φ = 295176960.

The previous prime is 663060779. The next prime is 663060833. The reversal of 663060825 is 528060366.

It is not a de Polignac number, because 663060825 - 2¹⁵ = 663028057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 663060825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 8393136 + ... + 8393214.

Almost surely, 2^663060825 is an apocalyptic number.

It is an amenable number.

663060825 is an abundant number, since it is smaller than the sum of its proper divisors (730480935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663060825 is a wasteful number, since it uses less digits than its factorization.

663060825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 663060825 is about 25749.9674757076. The cubic root of 663060825 is about 872.0026201595.

The spelling of 663060825 in words is "six hundred sixty-three million, sixty thousand, eight hundred twenty-five".