2520606856 has 16 divisors (see below), whose sum is σ = 4841410140. Its totient is φ = 1229564160.

The previous prime is 2520606787. The next prime is 2520606883. The reversal of 2520606856 is 6586060252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2486617956 + 33988900 = 49866^2 + 5830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842061 + ... + 3842716.

Almost surely, 2^2520606856 is an apocalyptic number.

It is an amenable number.

2520606856 is a deficient number, since it is larger than the sum of its proper divisors (2320803284).

2520606856 is a wasteful number, since it uses less digits than its factorization.

2520606856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684824 (or 7684820 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 2520606856 is about 50205.6456586309. The cubic root of 2520606856 is about 1360.9276499822.

The spelling of 2520606856 in words is "two billion, five hundred twenty million, six hundred six thousand, eight hundred fifty-six".