32543253421 has 24 divisors (see below), whose sum is σ = 38781805920. Its totient is φ = 27213877152.

The previous prime is 32543253401. The next prime is 32543253487. The reversal of 32543253421 is 12435234523.

It is not a de Polignac number, because 32543253421 - 2⁵ = 32543253389 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 (32543253401) 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, 1902535 + ... + 1919563.

It is an arithmetic number, because the mean of its divisors is an integer number (1615908580).

Almost surely, 2^32543253421 is an apocalyptic number.

It is an amenable number.

32543253421 is a deficient number, since it is larger than the sum of its proper divisors (6238552499).

32543253421 is a wasteful number, since it uses less digits than its factorization.

32543253421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17993 (or 17986 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

Adding to 32543253421 its reverse (12435234523), we get a palindrome (44978487944).

The spelling of 32543253421 in words is "thirty-two billion, five hundred forty-three million, two hundred fifty-three thousand, four hundred twenty-one".