52545666756 has 96 divisors (see below), whose sum is σ = 134671219200. Its totient is φ = 15813907200.

The previous prime is 52545666751. The next prime is 52545666757. The reversal of 52545666756 is 65766654525.

It is a happy number.

It is a super-2 number, since 2×52545666756² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52545666696 and 52545666705.

It is not an unprimeable number, because it can be changed into a prime (52545666751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15233320 + ... + 15236768.

It is an arithmetic number, because the mean of its divisors is an integer number (1402825200).

Almost surely, 2^52545666756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52545666756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67335609600).

52545666756 is an abundant number, since it is smaller than the sum of its proper divisors (82125552444).

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

52545666756 is a wasteful number, since it uses less digits than its factorization.

52545666756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225 (or 4223 counting only the distinct ones).

The product of its digits is 45360000, while the sum is 57.

The spelling of 52545666756 in words is "fifty-two billion, five hundred forty-five million, six hundred sixty-six thousand, seven hundred fifty-six".