52991604425 has 24 divisors (see below), whose sum is σ = 67651008600. Its totient is φ = 41146375680.

The previous prime is 52991604403. The next prime is 52991604473. The reversal of 52991604425 is 52440619925.

It can be written as a sum of positive squares in 12 ways, for example, as 280495504 + 52711108921 = 16748^2 + 229589^2 .

It is not a de Polignac number, because 52991604425 - 2⁶ = 52991604361 is a prime.

It is a super-2 number, since 2×52991604425² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52991604425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308291 + ... + 448359.

It is an arithmetic number, because the mean of its divisors is an integer number (2818792025).

Almost surely, 2^52991604425 is an apocalyptic number.

It is an amenable number.

52991604425 is a deficient number, since it is larger than the sum of its proper divisors (14659404175).

52991604425 is a wasteful number, since it uses less digits than its factorization.

52991604425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140525 (or 140520 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 52991604425 in words is "fifty-two billion, nine hundred ninety-one million, six hundred four thousand, four hundred twenty-five".