325257536501 has 4 divisors (see below), whose sum is σ = 325261025100. Its totient is φ = 325254047904.

The previous prime is 325257536479. The next prime is 325257536531. The reversal of 325257536501 is 105635752523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38897700625 + 286359835876 = 197225^2 + 535126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325257536501 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 (325257536531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600496 + ... + 1792233.

It is an arithmetic number, because the mean of its divisors is an integer number (81315256275).

Almost surely, 2^325257536501 is an apocalyptic number.

It is an amenable number.

325257536501 is a deficient number, since it is larger than the sum of its proper divisors (3488599).

325257536501 is an equidigital number, since it uses as much as digits as its factorization.

325257536501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488598.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 325257536501 in words is "three hundred twenty-five billion, two hundred fifty-seven million, five hundred thirty-six thousand, five hundred one".