52820402825 has 6 divisors (see below), whose sum is σ = 65497299534. Its totient is φ = 42256322240.

The previous prime is 52820402801. The next prime is 52820402861.

52820402825 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 531348601 + 52289054224 = 23051^2 + 228668^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52820402825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056408032 + ... + 1056408081.

It is an arithmetic number, because the mean of its divisors is an integer number (10916216589).

Almost surely, 2^52820402825 is an apocalyptic number.

It is an amenable number.

52820402825 is a deficient number, since it is larger than the sum of its proper divisors (12676896709).

52820402825 is a wasteful number, since it uses less digits than its factorization.

52820402825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112816123 (or 2112816118 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 52820402825 in words is "fifty-two billion, eight hundred twenty million, four hundred two thousand, eight hundred twenty-five".