32116521 has 16 divisors (see below), whose sum is σ = 43502400. Its totient is φ = 21073920.

The previous prime is 32116507. The next prime is 32116541. The reversal of 32116521 is 12561123.

It is not a de Polignac number, because 32116521 - 2⁶ = 32116457 is a prime.

It is a super-2 number, since 2×32116521² = 2062941842286882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32116501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71305 + ... + 71753.

It is an arithmetic number, because the mean of its divisors is an integer number (2718900).

Almost surely, 2^32116521 is an apocalyptic number.

It is an amenable number.

32116521 is a deficient number, since it is larger than the sum of its proper divisors (11385879).

32116521 is a wasteful number, since it uses less digits than its factorization.

32116521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its digits is 360, while the sum is 21.

The square root of 32116521 is about 5667.1439897006. The cubic root of 32116521 is about 317.8650885336.

Adding to 32116521 its reverse (12561123), we get a palindrome (44677644).

The spelling of 32116521 in words is "thirty-two million, one hundred sixteen thousand, five hundred twenty-one".