172025046401 has 16 divisors (see below), whose sum is σ = 187641334608. Its totient is φ = 156762086400.

The previous prime is 172025046377. The next prime is 172025046433. The reversal of 172025046401 is 104640520271.

It can be written as a sum of positive squares in 8 ways, for example, as 22379860801 + 149645185600 = 149599^2 + 386840^2 .

It is a cyclic number.

It is not a de Polignac number, because 172025046401 - 2¹⁸ = 172024784257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172025046451) 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, 55541 + ... + 589181.

It is an arithmetic number, because the mean of its divisors is an integer number (11727583413).

Almost surely, 2^172025046401 is an apocalyptic number.

It is an amenable number.

172025046401 is a deficient number, since it is larger than the sum of its proper divisors (15616288207).

172025046401 is a wasteful number, since it uses less digits than its factorization.

172025046401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533972.

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 172025046401 its reverse (104640520271), we get a palindrome (276665566672).

The spelling of 172025046401 in words is "one hundred seventy-two billion, twenty-five million, forty-six thousand, four hundred one".