52991604412 has 12 divisors (see below), whose sum is σ = 92737197000. Its totient is φ = 26495262416.

The previous prime is 52991604403. The next prime is 52991604473. The reversal of 52991604412 is 21440619925.

It is a super-2 number, since 2×52991604412² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155298 + ... + 360694.

It is an arithmetic number, because the mean of its divisors is an integer number (7728099750).

Almost surely, 2^52991604412 is an apocalyptic number.

It is an amenable number.

52991604412 is a deficient number, since it is larger than the sum of its proper divisors (39745592588).

52991604412 is a wasteful number, since it uses less digits than its factorization.

52991604412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269900 (or 269898 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 52991604412 in words is "fifty-two billion, nine hundred ninety-one million, six hundred four thousand, four hundred twelve".