2512090586521 has 4 divisors (see below), whose sum is σ = 2512364811444. Its totient is φ = 2511816361600.

The previous prime is 2512090586507. The next prime is 2512090586531. The reversal of 2512090586521 is 1256850902152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273700570896 + 2238390015625 = 523164^2 + 1496125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512090586521 - 2¹¹ = 2512090584473 is a prime.

It is a super-2 number, since 2×2512090586521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512090586531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137098720 + ... + 137117041.

It is an arithmetic number, because the mean of its divisors is an integer number (628091202861).

Almost surely, 2^{2512090586521} is an apocalyptic number.

It is an amenable number.

2512090586521 is a deficient number, since it is larger than the sum of its proper divisors (274224923).

2512090586521 is an equidigital number, since it uses as much as digits as its factorization.

2512090586521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274224922.

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 2512090586521 in words is "two trillion, five hundred twelve billion, ninety million, five hundred eighty-six thousand, five hundred twenty-one".