53447754064 has 20 divisors (see below), whose sum is σ = 103708915156. Its totient is φ = 26684163072.

The previous prime is 53447753963. The next prime is 53447754127. The reversal of 53447754064 is 46045774435.

It can be written as a sum of positive squares in 2 ways, for example, as 23556110400 + 29891643664 = 153480^2 + 172892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53447753999 and 53447754017.

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, 2471019 + ... + 2492554.

Almost surely, 2^53447754064 is an apocalyptic number.

It is an amenable number.

53447754064 is a deficient number, since it is larger than the sum of its proper divisors (50261161092).

53447754064 is a wasteful number, since it uses less digits than its factorization.

53447754064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964254 (or 4964248 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 49.

The spelling of 53447754064 in words is "fifty-three billion, four hundred forty-seven million, seven hundred fifty-four thousand, sixty-four".