2520606649 has 8 divisors (see below), whose sum is σ = 2751513120. Its totient is φ = 2289993600.

The previous prime is 2520606631. The next prime is 2520606667. The reversal of 2520606649 is 9466060252.

It is an interprime number because it is at equal distance from previous prime (2520606631) and next prime (2520606667).

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

It is a cyclic number.

It is not a de Polignac number, because 2520606649 - 2¹⁷ = 2520475577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520606619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55192 + ... + 89929.

It is an arithmetic number, because the mean of its divisors is an integer number (343939140).

Almost surely, 2^2520606649 is an apocalyptic number.

It is an amenable number.

2520606649 is a deficient number, since it is larger than the sum of its proper divisors (230906471).

2520606649 is a wasteful number, since it uses less digits than its factorization.

2520606649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146711.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 2520606649 is about 50205.6435971097. The cubic root of 2520606649 is about 1360.9276127276.

The spelling of 2520606649 in words is "two billion, five hundred twenty million, six hundred six thousand, six hundred forty-nine".