2520528561 has 12 divisors (see below), whose sum is σ = 3666957840. Its totient is φ = 1668262680.

The previous prime is 2520528559. The next prime is 2520528611. The reversal of 2520528561 is 1658250252.

It is a happy number.

2520528561 is a `hidden beast` number, since 2 + 520 + 52 + 85 + 6 + 1 = 666.

2520528561 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2520528561 - 2¹ = 2520528559 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2520521561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1006155 + ... + 1008656.

It is an arithmetic number, because the mean of its divisors is an integer number (305579820).

Almost surely, 2^2520528561 is an apocalyptic number.

It is an amenable number.

2520528561 is a deficient number, since it is larger than the sum of its proper divisors (1146429279).

2520528561 is a wasteful number, since it uses less digits than its factorization.

2520528561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014956 (or 2014953 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 2520528561 is about 50204.8659095909. The cubic root of 2520528561 is about 1360.9135588076.

The spelling of 2520528561 in words is "two billion, five hundred twenty million, five hundred twenty-eight thousand, five hundred sixty-one".