2565474806 has 12 divisors (see below), whose sum is σ = 3863624892. Its totient is φ = 1277604384.

The previous prime is 2565474761. The next prime is 2565474817. The reversal of 2565474806 is 6084745652.

2565474806 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 an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1203950 + ... + 1206078.

It is an arithmetic number, because the mean of its divisors is an integer number (321968741).

Almost surely, 2^2565474806 is an apocalyptic number.

2565474806 is a deficient number, since it is larger than the sum of its proper divisors (1298150086).

2565474806 is an frugal number, since it uses more digits than its factorization.

2565474806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The square root of 2565474806 is about 50650.5163448508. The cubic root of 2565474806 is about 1368.9552490911.

The spelling of 2565474806 in words is "two billion, five hundred sixty-five million, four hundred seventy-four thousand, eight hundred six".