2520445066 has 4 divisors (see below), whose sum is σ = 3780667602. Its totient is φ = 1260222532.

The previous prime is 2520445021. The next prime is 2520445159. The reversal of 2520445066 is 6605440252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1605685041 + 914760025 = 40071^2 + 30245^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630111265 + ... + 630111268.

Almost surely, 2^2520445066 is an apocalyptic number.

2520445066 is a deficient number, since it is larger than the sum of its proper divisors (1260222536).

2520445066 is a wasteful number, since it uses less digits than its factorization.

2520445066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260222535.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2520445066 is about 50204.0343598002. The cubic root of 2520445066 is about 1360.8985314394.

The spelling of 2520445066 in words is "two billion, five hundred twenty million, four hundred forty-five thousand, sixty-six".