52525566016 has 112 divisors (see below), whose sum is σ = 130134481920. Its totient is φ = 20435397120.

The previous prime is 52525565999. The next prime is 52525566019. The reversal of 52525566016 is 61066552525.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×52525566016² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52525566019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3634581 + ... + 3649003.

Almost surely, 2^52525566016 is an apocalyptic number.

52525566016 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 52525566016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65067240960).

52525566016 is an abundant number, since it is smaller than the sum of its proper divisors (77608915904).

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

52525566016 is a wasteful number, since it uses less digits than its factorization.

52525566016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15192 (or 15182 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 52525566016 in words is "fifty-two billion, five hundred twenty-five million, five hundred sixty-six thousand, sixteen".