172056525020 has 96 divisors (see below), whose sum is σ = 404485643520. Its totient is φ = 61094200320.

The previous prime is 172056525013. The next prime is 172056525029. The reversal of 172056525020 is 20525650271.

172056525020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172056525029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1407755 + ... + 1525085.

It is an arithmetic number, because the mean of its divisors is an integer number (4213392120).

Almost surely, 2^172056525020 is an apocalyptic number.

172056525020 is a gapful number since it is divisible by the number (10) 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 172056525020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202242821760).

172056525020 is an abundant number, since it is smaller than the sum of its proper divisors (232429118500).

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

172056525020 is a wasteful number, since it uses less digits than its factorization.

172056525020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117603 (or 117601 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 172056525020 in words is "one hundred seventy-two billion, fifty-six million, five hundred twenty-five thousand, twenty".