675165520 has 20 divisors (see below), whose sum is σ = 1569760020. Its totient is φ = 270066176.

The previous prime is 675165503. The next prime is 675165527. The reversal of 675165520 is 25561576.

It can be written as a sum of positive squares in 2 ways, for example, as 190108944 + 485056576 = 13788^2 + 22024^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 675165520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675165527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4219705 + ... + 4219864.

It is an arithmetic number, because the mean of its divisors is an integer number (78488001).

Almost surely, 2^675165520 is an apocalyptic number.

It is an amenable number.

675165520 is an abundant number, since it is smaller than the sum of its proper divisors (894594500).

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

675165520 is a wasteful number, since it uses less digits than its factorization.

675165520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439582 (or 8439576 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 675165520 is about 25983.9473521634. The cubic root of 675165520 is about 877.2770168507.

The spelling of 675165520 in words is "six hundred seventy-five million, one hundred sixty-five thousand, five hundred twenty".