6504875401 has 4 divisors (see below), whose sum is σ = 6505038100. Its totient is φ = 6504712704.

The previous prime is 6504875389. The next prime is 6504875423. The reversal of 6504875401 is 1045784056.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4160379001 + 2344496400 = 64501^2 + 48420^2 .

It is a cyclic number.

It is not a de Polignac number, because 6504875401 - 2⁹ = 6504874889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6504875101) 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, 24745 + ... + 116713.

It is an arithmetic number, because the mean of its divisors is an integer number (1626259525).

Almost surely, 2^6504875401 is an apocalyptic number.

It is an amenable number.

6504875401 is a deficient number, since it is larger than the sum of its proper divisors (162699).

6504875401 is an equidigital number, since it uses as much as digits as its factorization.

6504875401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162698.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 6504875401 is about 80652.8077688558. The cubic root of 6504875401 is about 1866.7220640695.

The spelling of 6504875401 in words is "six billion, five hundred four million, eight hundred seventy-five thousand, four hundred one".