2520522665 has 8 divisors (see below), whose sum is σ = 3030413568. Its totient is φ = 2012560560.

The previous prime is 2520522659. The next prime is 2520522671. The reversal of 2520522665 is 5662250252.

It is an interprime number because it is at equal distance from previous prime (2520522659) and next prime (2520522671).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2520522665 - 2⁸ = 2520522409 is a prime.

It is a Duffinian 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, 479321 + ... + 484550.

It is an arithmetic number, because the mean of its divisors is an integer number (378801696).

Almost surely, 2^2520522665 is an apocalyptic number.

It is an amenable number.

2520522665 is a deficient number, since it is larger than the sum of its proper divisors (509890903).

2520522665 is an equidigital number, since it uses as much as digits as its factorization.

2520522665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964399.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2520522665 is about 50204.8071901486. The cubic root of 2520522665 is about 1360.9124976608.

The spelling of 2520522665 in words is "two billion, five hundred twenty million, five hundred twenty-two thousand, six hundred sixty-five".