6503280001 has 8 divisors (see below), whose sum is σ = 6540652800. Its totient is φ = 6465954528.

The previous prime is 6503279987. The next prime is 6503280013. The reversal of 6503280001 is 1000823056.

It is a happy number.

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 6503280001 - 2¹⁹ = 6502755713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6503280031) 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, 284925 + ... + 306901.

It is an arithmetic number, because the mean of its divisors is an integer number (817581600).

Almost surely, 2^6503280001 is an apocalyptic number.

It is an amenable number.

6503280001 is a deficient number, since it is larger than the sum of its proper divisors (37372799).

6503280001 is a wasteful number, since it uses less digits than its factorization.

6503280001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23663.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6503280001 is about 80642.9166201223. The cubic root of 6503280001 is about 1866.5694394760.

The spelling of 6503280001 in words is "six billion, five hundred three million, two hundred eighty thousand, one".