3652319521 has 4 divisors (see below), whose sum is σ = 3670859412. Its totient is φ = 3633779632.

The previous prime is 3652319501. The next prime is 3652319527. The reversal of 3652319521 is 1259132563.

3652319521 = T₄₉₃₄₃ + T₄₉₃₄₄ + T₄₉₃₄₅.

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 2706080400 + 946239121 = 52020^2 + 30761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3652319521 - 2⁹ = 3652319009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3652319527) 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, 9269650 + ... + 9270043.

It is an arithmetic number, because the mean of its divisors is an integer number (917714853).

Almost surely, 2^3652319521 is an apocalyptic number.

3652319521 is the 49345-th centered triangular number.

It is an amenable number.

3652319521 is a deficient number, since it is larger than the sum of its proper divisors (18539891).

3652319521 is a wasteful number, since it uses less digits than its factorization.

3652319521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18539890.

The product of its digits is 48600, while the sum is 37.

The square root of 3652319521 is about 60434.4233115532. The cubic root of 3652319521 is about 1540.0078035530.

The spelling of 3652319521 in words is "three billion, six hundred fifty-two million, three hundred nineteen thousand, five hundred twenty-one".