2565059652 has 18 divisors (see below), whose sum is σ = 6483900878. Its totient is φ = 855019872.

The previous prime is 2565059647. The next prime is 2565059663. The reversal of 2565059652 is 2569505652.

2565059652 is a `hidden beast` number, since 2 + 5 + 6 + 5 + 0 + 596 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1598720256 + 966339396 = 39984^2 + 31086^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2565059652² = 13159062036636722208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2565059598 and 2565059607.

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, 35625793 + ... + 35625864.

Almost surely, 2^2565059652 is an apocalyptic number.

It is an amenable number.

2565059652 is an abundant number, since it is smaller than the sum of its proper divisors (3918841226).

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

2565059652 is a wasteful number, since it uses less digits than its factorization.

2565059652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71251667 (or 71251662 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 2565059652 is about 50646.4179582327. The cubic root of 2565059652 is about 1368.8814020842.

The spelling of 2565059652 in words is "two billion, five hundred sixty-five million, fifty-nine thousand, six hundred fifty-two".