2565225652 has 48 divisors (see below), whose sum is σ = 5031440064. Its totient is φ = 1143885600.

The previous prime is 2565225647. The next prime is 2565225661.

It is a happy number.

2565225652 is nontrivially palindromic in base 10.

2565225652 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 15 ways as a sum of consecutive naturals, for example, 277627 + ... + 286717.

It is an arithmetic number, because the mean of its divisors is an integer number (104821668).

Almost surely, 2^2565225652 is an apocalyptic number.

2565225652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2565225652 is a deficient number, since it is larger than the sum of its proper divisors (2466214412).

2565225652 is a wasteful number, since it uses less digits than its factorization.

2565225652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181 (or 9157 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The square root of 2565225652 is about 50648.0567445583. The cubic root of 2565225652 is about 1368.9109308856.

The spelling of 2565225652 in words is "two billion, five hundred sixty-five million, two hundred twenty-five thousand, six hundred fifty-two".