52445132661 has 4 divisors (see below), whose sum is σ = 69926843552. Its totient is φ = 34963421772.

The previous prime is 52445132659. The next prime is 52445132743. The reversal of 52445132661 is 16623154425.

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.

It is not a de Polignac number, because 52445132661 - 2¹ = 52445132659 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 (52445133661) 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, 8740855441 + ... + 8740855446.

It is an arithmetic number, because the mean of its divisors is an integer number (17481710888).

Almost surely, 2^52445132661 is an apocalyptic number.

It is an amenable number.

52445132661 is a deficient number, since it is larger than the sum of its proper divisors (17481710891).

52445132661 is a wasteful number, since it uses less digits than its factorization.

52445132661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17481710890.

The product of its digits is 172800, while the sum is 39.

The spelling of 52445132661 in words is "fifty-two billion, four hundred forty-five million, one hundred thirty-two thousand, six hundred sixty-one".