36520645 has 24 divisors (see below), whose sum is σ = 51496704. Its totient is φ = 24345408.

The previous prime is 36520637. The next prime is 36520651. The reversal of 36520645 is 54602563.

It is not a de Polignac number, because 36520645 - 2³ = 36520637 is a prime.

It is a super-2 number, since 2×36520645² = 2667515022432050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245031 + ... + 245179.

It is an arithmetic number, because the mean of its divisors is an integer number (2145696).

Almost surely, 2^36520645 is an apocalyptic number.

36520645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36520645 is a deficient number, since it is larger than the sum of its proper divisors (14976059).

36520645 is an equidigital number, since it uses as much as digits as its factorization.

36520645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 36520645 is about 6043.2313376206. The cubic root of 36520645 is about 331.7769010895.

The spelling of 36520645 in words is "thirty-six million, five hundred twenty thousand, six hundred forty-five".