32540520221 has 16 divisors (see below), whose sum is σ = 38991767040. Its totient is φ = 26806831920.

The previous prime is 32540520217. The next prime is 32540520239. The reversal of 32540520221 is 12202504523.

It is not a de Polignac number, because 32540520221 - 2² = 32540520217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32540520421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379895 + ... + 3389508.

It is an arithmetic number, because the mean of its divisors is an integer number (2436985440).

Almost surely, 2^32540520221 is an apocalyptic number.

It is an amenable number.

32540520221 is a deficient number, since it is larger than the sum of its proper divisors (6451246819).

32540520221 is a wasteful number, since it uses less digits than its factorization.

32540520221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6769456.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 32540520221 in words is "thirty-two billion, five hundred forty million, five hundred twenty thousand, two hundred twenty-one".