2565115652 has 24 divisors (see below), whose sum is σ = 5185101600. Its totient is φ = 1097375360.

The previous prime is 2565115649. The next prime is 2565115667.

2565115652 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713902 + ... + 1715397.

It is an arithmetic number, because the mean of its divisors is an integer number (216045900).

Almost surely, 2^2565115652 is an apocalyptic number.

2565115652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2565115652 is an abundant number, since it is smaller than the sum of its proper divisors (2619985948).

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

2565115652 is a wasteful number, since it uses less digits than its factorization.

2565115652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429331 (or 3429329 counting only the distinct ones).

The product of its digits is 90000, while the sum is 38.

The square root of 2565115652 is about 50646.9708077393. The cubic root of 2565115652 is about 1368.8913637500.

The spelling of 2565115652 in words is "two billion, five hundred sixty-five million, one hundred fifteen thousand, six hundred fifty-two".