36326561 has 4 divisors (see below), whose sum is σ = 36379824. Its totient is φ = 36273300.

The previous prime is 36326551. The next prime is 36326573. The reversal of 36326561 is 16562363.

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 36326561 - 2⁶ = 36326497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36326551) 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, 25595 + ... + 26976.

It is an arithmetic number, because the mean of its divisors is an integer number (9094956).

Almost surely, 2^36326561 is an apocalyptic number.

It is an amenable number.

36326561 is a deficient number, since it is larger than the sum of its proper divisors (53263).

36326561 is an equidigital number, since it uses as much as digits as its factorization.

36326561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53262.

The product of its digits is 19440, while the sum is 32.

The square root of 36326561 is about 6027.1519808281. The cubic root of 36326561 is about 331.1881291351.

The spelling of 36326561 in words is "thirty-six million, three hundred twenty-six thousand, five hundred sixty-one".