36644525 has 12 divisors (see below), whose sum is σ = 45616500. Its totient is φ = 29201280.

The previous prime is 36644501. The next prime is 36644539. The reversal of 36644525 is 52544663.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12859396 + 23785129 = 3586^2 + 4877^2 .

It is not a de Polignac number, because 36644525 - 2¹⁶ = 36578989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4001 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (3801375).

Almost surely, 2^36644525 is an apocalyptic number.

It is an amenable number.

36644525 is a deficient number, since it is larger than the sum of its proper divisors (8971975).

36644525 is a wasteful number, since it uses less digits than its factorization.

36644525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728 (or 5723 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 36644525 is about 6053.4721441500. The cubic root of 36644525 is about 332.1516127825.

The spelling of 36644525 in words is "thirty-six million, six hundred forty-four thousand, five hundred twenty-five".