52706358656 has 64 divisors (see below), whose sum is σ = 120262332960. Its totient is φ = 22539264000.

The previous prime is 52706358631. The next prime is 52706358673. The reversal of 52706358656 is 65685360725.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×52706358656² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52706358598 and 52706358607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349256 + ... + 476856.

Almost surely, 2^52706358656 is an apocalyptic number.

52706358656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52706358656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60131166480).

52706358656 is an abundant number, since it is smaller than the sum of its proper divisors (67555974304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52706358656 is a wasteful number, since it uses less digits than its factorization.

52706358656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128083 (or 128071 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 52706358656 in words is "fifty-two billion, seven hundred six million, three hundred fifty-eight thousand, six hundred fifty-six".