6442552445 has 8 divisors (see below), whose sum is σ = 8835500544. Its totient is φ = 4417750224.

The previous prime is 6442552423. The next prime is 6442552453. The reversal of 6442552445 is 5442552446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6442552445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92036429 + ... + 92036498.

It is an arithmetic number, because the mean of its divisors is an integer number (1104437568).

Almost surely, 2^6442552445 is an apocalyptic number.

It is an amenable number.

6442552445 is a deficient number, since it is larger than the sum of its proper divisors (2392948099).

6442552445 is a wasteful number, since it uses less digits than its factorization.

6442552445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184072939.

The product of its digits is 768000, while the sum is 41.

The square root of 6442552445 is about 80265.5121767749. The cubic root of 6442552445 is about 1860.7412589682.

Subtracting from 6442552445 its reverse (5442552446), we obtain a palindrome (999999999).

The spelling of 6442552445 in words is "six billion, four hundred forty-two million, five hundred fifty-two thousand, four hundred forty-five".