172441025 has 6 divisors (see below), whose sum is σ = 213826902. Its totient is φ = 137952800.

The previous prime is 172441021. The next prime is 172441033. The reversal of 172441025 is 520144271.

172441025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 39891856 + 132549169 = 6316^2 + 11513^2 .

It is not a de Polignac number, because 172441025 - 2² = 172441021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172440985 and 172441003.

It is not an unprimeable number, because it can be changed into a prime (172441021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3448796 + ... + 3448845.

It is an arithmetic number, because the mean of its divisors is an integer number (35637817).

Almost surely, 2^172441025 is an apocalyptic number.

It is an amenable number.

172441025 is a deficient number, since it is larger than the sum of its proper divisors (41385877).

172441025 is an equidigital number, since it uses as much as digits as its factorization.

172441025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897651 (or 6897646 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 172441025 is about 13131.6802047567. The cubic root of 172441025 is about 556.6046948752.

Adding to 172441025 its reverse (520144271), we get a palindrome (692585296).

The spelling of 172441025 in words is "one hundred seventy-two million, four hundred forty-one thousand, twenty-five".