2064526521 has 4 divisors (see below), whose sum is σ = 2752702032. Its totient is φ = 1376351012.

The previous prime is 2064526507. The next prime is 2064526523. The reversal of 2064526521 is 1256254602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2064526521 - 2¹⁴ = 2064510137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2064526523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344087751 + ... + 344087756.

It is an arithmetic number, because the mean of its divisors is an integer number (688175508).

Almost surely, 2^2064526521 is an apocalyptic number.

It is an amenable number.

2064526521 is a deficient number, since it is larger than the sum of its proper divisors (688175511).

2064526521 is an equidigital number, since it uses as much as digits as its factorization.

2064526521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688175510.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 2064526521 is about 45437.0610955418. The cubic root of 2064526521 is about 1273.3276078539.

The spelling of 2064526521 in words is "two billion, sixty-four million, five hundred twenty-six thousand, five hundred twenty-one".