2605027521 has 16 divisors (see below), whose sum is σ = 3678761664. Its totient is φ = 1634049024.

The previous prime is 2605027519. The next prime is 2605027549. The reversal of 2605027521 is 1257205062.

It is not a de Polignac number, because 2605027521 - 2¹ = 2605027519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605027511) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 265326 + ... + 274968.

It is an arithmetic number, because the mean of its divisors is an integer number (229922604).

Almost surely, 2^2605027521 is an apocalyptic number.

It is an amenable number.

2605027521 is a deficient number, since it is larger than the sum of its proper divisors (1073734143).

2605027521 is a wasteful number, since it uses less digits than its factorization.

2605027521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14960.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2605027521 is about 51039.4702264826. The cubic root of 2605027521 is about 1375.9546025182.

The spelling of 2605027521 in words is "two billion, six hundred five million, twenty-seven thousand, five hundred twenty-one".