32532981557 has 4 divisors (see below), whose sum is σ = 33947459040. Its totient is φ = 31118504076.

The previous prime is 32532981541. The next prime is 32532981727. The reversal of 32532981557 is 75518923523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75518923523 = 17 ⋅4442289619.

It is a cyclic number.

It is not a de Polignac number, because 32532981557 - 2⁴ = 32532981541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32532981517) 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, 707238707 + ... + 707238752.

It is an arithmetic number, because the mean of its divisors is an integer number (8486864760).

Almost surely, 2^32532981557 is an apocalyptic number.

It is an amenable number.

32532981557 is a deficient number, since it is larger than the sum of its proper divisors (1414477483).

32532981557 is a wasteful number, since it uses less digits than its factorization.

32532981557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414477482.

The product of its digits is 2268000, while the sum is 50.

The spelling of 32532981557 in words is "thirty-two billion, five hundred thirty-two million, nine hundred eighty-one thousand, five hundred fifty-seven".