36521217 has 12 divisors (see below), whose sum is σ = 55046784. Its totient is φ = 23288760.

The previous prime is 36521203. The next prime is 36521227. The reversal of 36521217 is 71212563.

It is a happy number.

36521217 is a `hidden beast` number, since 3 + 652 + 1 + 2 + 1 + 7 = 666.

It is not a de Polignac number, because 36521217 - 2¹⁸ = 36259073 is a prime.

It is a super-2 number, since 2×36521217² = 2667598582322178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36521227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88009 + ... + 88422.

It is an arithmetic number, because the mean of its divisors is an integer number (4587232).

Almost surely, 2^36521217 is an apocalyptic number.

It is an amenable number.

36521217 is a deficient number, since it is larger than the sum of its proper divisors (18525567).

36521217 is a wasteful number, since it uses less digits than its factorization.

36521217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176460 (or 176457 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 36521217 is about 6043.2786631100. The cubic root of 36521217 is about 331.7786332184.

The spelling of 36521217 in words is "thirty-six million, five hundred twenty-one thousand, two hundred seventeen".