32505442433 has 4 divisors (see below), whose sum is σ = 34417527300. Its totient is φ = 30593357568.

The previous prime is 32505442423. The next prime is 32505442439. The reversal of 32505442433 is 33424450523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33424450523 = 51349 ⋅650927.

It can be written as a sum of positive squares in 2 ways, for example, as 25233957904 + 7271484529 = 158852^2 + 85273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32505442433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32505442393 and 32505442402.

It is not an unprimeable number, because it can be changed into a prime (32505442439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956042408 + ... + 956042441.

It is an arithmetic number, because the mean of its divisors is an integer number (8604381825).

Almost surely, 2^32505442433 is an apocalyptic number.

It is an amenable number.

32505442433 is a deficient number, since it is larger than the sum of its proper divisors (1912084867).

32505442433 is a wasteful number, since it uses less digits than its factorization.

32505442433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912084866.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 32505442433 its reverse (33424450523), we get a palindrome (65929892956).

The spelling of 32505442433 in words is "thirty-two billion, five hundred five million, four hundred forty-two thousand, four hundred thirty-three".