2613929065225 has 27 divisors (see below), whose sum is σ = 3304123576159. Its totient is φ = 2051351432000.

The previous prime is 2613929065219. The next prime is 2613929065243. The reversal of 2613929065225 is 5225609293162.

It is a happy number.

The square root of 2613929065225 is 1616765.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 748617761529 + 1865311303696 = 865227^2 + 1365764^2 .

It is not a de Polignac number, because 2613929065225 - 2⁹ = 2613929064713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 428439675 + ... + 428445775.

Almost surely, 2^{2613929065225} is an apocalyptic number.

2613929065225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2613929065225 is the 1616765-th square number.

2613929065225 is the 808383-rd centered octagonal number.

It is an amenable number.

2613929065225 is a deficient number, since it is larger than the sum of its proper divisors (690194510934).

2613929065225 is an frugal number, since it uses more digits than its factorization.

2613929065225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318 (or 6159 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 2613929065225 in words is "two trillion, six hundred thirteen billion, nine hundred twenty-nine million, sixty-five thousand, two hundred twenty-five".