3650001521 has 4 divisors (see below), whose sum is σ = 3652192752. Its totient is φ = 3647810292.

The previous prime is 3650001503. The next prime is 3650001527. The reversal of 3650001521 is 1251000563.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1251000563 = 10303 ⋅121421.

It is a cyclic number.

It is not a de Polignac number, because 3650001521 - 2¹⁸ = 3649739377 is a prime.

It is a super-2 number, since 2×3650001521² = 26645022206604626882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3650001527) 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, 1093115 + ... + 1096448.

It is an arithmetic number, because the mean of its divisors is an integer number (913048188).

Almost surely, 2^3650001521 is an apocalyptic number.

It is an amenable number.

3650001521 is a deficient number, since it is larger than the sum of its proper divisors (2191231).

3650001521 is a wasteful number, since it uses less digits than its factorization.

3650001521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191230.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 3650001521 is about 60415.2424558571. The cubic root of 3650001521 is about 1539.6819381652.

The spelling of 3650001521 in words is "three billion, six hundred fifty million, one thousand, five hundred twenty-one".