36533421 has 24 divisors (see below), whose sum is σ = 53813760. Its totient is φ = 23880096.

The previous prime is 36533389. The next prime is 36533423. The reversal of 36533421 is 12433563.

It is a happy number.

36533421 is a `hidden beast` number, since 3 + 653 + 3 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 36533421 - 2⁵ = 36533389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36533423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163716 + ... + 163938.

It is an arithmetic number, because the mean of its divisors is an integer number (2242240).

Almost surely, 2^36533421 is an apocalyptic number.

It is an amenable number.

36533421 is a deficient number, since it is larger than the sum of its proper divisors (17280339).

36533421 is a wasteful number, since it uses less digits than its factorization.

36533421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 502 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 36533421 is about 6044.2882955729. The cubic root of 36533421 is about 331.8155850312.

Adding to 36533421 its reverse (12433563), we get a palindrome (48966984).

The spelling of 36533421 in words is "thirty-six million, five hundred thirty-three thousand, four hundred twenty-one".