2565572020 has 24 divisors (see below), whose sum is σ = 5877492768. Its totient is φ = 932935200.

The previous prime is 2565571991. The next prime is 2565572021. The reversal of 2565572020 is 202755652.

2565572020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565572021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5830626 + ... + 5831065.

It is an arithmetic number, because the mean of its divisors is an integer number (244895532).

Almost surely, 2^2565572020 is an apocalyptic number.

2565572020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565572020 is an abundant number, since it is smaller than the sum of its proper divisors (3311920748).

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

2565572020 is a wasteful number, since it uses less digits than its factorization.

2565572020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661711 (or 11661709 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 2565572020 is about 50651.4759903401. The cubic root of 2565572020 is about 1368.9725402288.

The spelling of 2565572020 in words is "two billion, five hundred sixty-five million, five hundred seventy-two thousand, twenty".