36290521 has 4 divisors (see below), whose sum is σ = 36425700. Its totient is φ = 36155344.

The previous prime is 36290497. The next prime is 36290539. The reversal of 36290521 is 12509263.

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 4243600 + 32046921 = 2060^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 36290521 - 2⁵ = 36290489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36290521.

It is not an unprimeable number, because it can be changed into a prime (36290561) 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, 67186 + ... + 67723.

It is an arithmetic number, because the mean of its divisors is an integer number (9106425).

Almost surely, 2^36290521 is an apocalyptic number.

It is an amenable number.

36290521 is a deficient number, since it is larger than the sum of its proper divisors (135179).

36290521 is a wasteful number, since it uses less digits than its factorization.

36290521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135178.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 36290521 is about 6024.1614354199. The cubic root of 36290521 is about 331.0785677076.

Adding to 36290521 its reverse (12509263), we get a palindrome (48799784).

It can be divided in two parts, 36 and 290521, that multiplied together give a square (10458756 = 3234²).

The spelling of 36290521 in words is "thirty-six million, two hundred ninety thousand, five hundred twenty-one".