53320440325 has 12 divisors (see below), whose sum is σ = 66343011588. Its totient is φ = 42510761600.

The previous prime is 53320440311. The next prime is 53320440331. The reversal of 53320440325 is 52304402335.

It can be written as a sum of positive squares in 6 ways, for example, as 4269707649 + 49050732676 = 65343^2 + 221474^2 .

It is not a de Polignac number, because 53320440325 - 2⁹ = 53320439813 is a prime.

It is a super-2 number, since 2×53320440325² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3632296 + ... + 3646945.

It is an arithmetic number, because the mean of its divisors is an integer number (5528584299).

Almost surely, 2^53320440325 is an apocalyptic number.

It is an amenable number.

53320440325 is a deficient number, since it is larger than the sum of its proper divisors (13022571263).

53320440325 is a wasteful number, since it uses less digits than its factorization.

53320440325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279544 (or 7279539 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

The spelling of 53320440325 in words is "fifty-three billion, three hundred twenty million, four hundred forty thousand, three hundred twenty-five".