2605015825 has 12 divisors (see below), whose sum is σ = 3420233100. Its totient is φ = 1961423360.

The previous prime is 2605015817. The next prime is 2605015837. The reversal of 2605015825 is 5285105062.

It can be written as a sum of positive squares in 6 ways, for example, as 61528336 + 2543487489 = 7844^2 + 50433^2 .

It is not a de Polignac number, because 2605015825 - 2³ = 2605015817 is a prime.

It is a super-2 number, since 2×2605015825² = 13572214897000861250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3064300 + ... + 3065149.

It is an arithmetic number, because the mean of its divisors is an integer number (285019425).

Almost surely, 2^2605015825 is an apocalyptic number.

2605015825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2605015825 is a deficient number, since it is larger than the sum of its proper divisors (815217275).

2605015825 is a wasteful number, since it uses less digits than its factorization.

2605015825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129476 (or 6129471 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 2605015825 is about 51039.3556483622. The cubic root of 2605015825 is about 1375.9525432707.

The spelling of 2605015825 in words is "two billion, six hundred five million, fifteen thousand, eight hundred twenty-five".