675540020 has 12 divisors (see below), whose sum is σ = 1418634084. Its totient is φ = 270216000.

The previous prime is 675539957. The next prime is 675540031. The reversal of 675540020 is 20045576.

It can be written as a sum of positive squares in 2 ways, for example, as 142945936 + 532594084 = 11956^2 + 23078^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16888481 + ... + 16888520.

It is an arithmetic number, because the mean of its divisors is an integer number (118219507).

Almost surely, 2^675540020 is an apocalyptic number.

It is an amenable number.

675540020 is an abundant number, since it is smaller than the sum of its proper divisors (743094064).

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

675540020 is a wasteful number, since it uses less digits than its factorization.

675540020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33777010 (or 33777008 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 675540020 is about 25991.1527254949. The cubic root of 675540020 is about 877.4391891907.

Adding to 675540020 its reverse (20045576), we get a palindrome (695585596).

It can be divided in two parts, 675 and 540020, that multiplied together give a triangular number (364513500 = T₂₇₀₀₀).

The spelling of 675540020 in words is "six hundred seventy-five million, five hundred forty thousand, twenty".