2566200520 has 64 divisors (see below), whose sum is σ = 6249600000. Its totient is φ = 942720768.

The previous prime is 2566200509. The next prime is 2566200547. The reversal of 2566200520 is 250026652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91081 + ... + 115879.

It is an arithmetic number, because the mean of its divisors is an integer number (97650000).

Almost surely, 2^2566200520 is an apocalyptic number.

2566200520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566200520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124800000).

2566200520 is an abundant number, since it is smaller than the sum of its proper divisors (3683399480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2566200520 is a wasteful number, since it uses less digits than its factorization.

2566200520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022 (or 25018 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2566200520 is about 50657.6797731598. The cubic root of 2566200520 is about 1369.0843189388.

The spelling of 2566200520 in words is "two billion, five hundred sixty-six million, two hundred thousand, five hundred twenty".