36640575 has 18 divisors (see below), whose sum is σ = 65627744. Its totient is φ = 19541520.

The previous prime is 36640567. The next prime is 36640579. The reversal of 36640575 is 57504663.

36640575 is a `hidden beast` number, since 3 + 6 + 640 + 5 + 7 + 5 = 666.

It is not a de Polignac number, because 36640575 - 2³ = 36640567 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36640579) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 81199 + ... + 81648.

Almost surely, 2^36640575 is an apocalyptic number.

36640575 is a deficient number, since it is larger than the sum of its proper divisors (28987169).

36640575 is a wasteful number, since it uses less digits than its factorization.

36640575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162863 (or 162855 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 36640575 is about 6053.1458763192. The cubic root of 36640575 is about 332.1396778844.

The spelling of 36640575 in words is "thirty-six million, six hundred forty thousand, five hundred seventy-five".