6448562501 has 8 divisors (see below), whose sum is σ = 6646427544. Its totient is φ = 6251938560.

The previous prime is 6448562459. The next prime is 6448562521. The reversal of 6448562501 is 1052658446.

It can be written as a sum of positive squares in 4 ways, for example, as 2857437025 + 3591125476 = 53455^2 + 59926^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6448562501 - 2¹⁰ = 6448561477 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 (6448562521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299720 + ... + 320513.

It is an arithmetic number, because the mean of its divisors is an integer number (830803443).

Almost surely, 2^6448562501 is an apocalyptic number.

It is an amenable number.

6448562501 is a deficient number, since it is larger than the sum of its proper divisors (197865043).

6448562501 is a wasteful number, since it uses less digits than its factorization.

6448562501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620551.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 6448562501 is about 80302.9420444855. The cubic root of 6448562501 is about 1861.3196882781.

The spelling of 6448562501 in words is "six billion, four hundred forty-eight million, five hundred sixty-two thousand, five hundred one".