172525787525271 has 16 divisors (see below), whose sum is σ = 231517182025728. Its totient is φ = 114275903820000.

The previous prime is 172525787525261. The next prime is 172525787525309.

172525787525271 is nontrivially palindromic in base 10.

172525787525271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172525787525271 - 2⁵ = 172525787525239 is a prime.

It is a super-2 number, since 2×172525787525271² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172525787525261) 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, 7732455 + ... + 20120696.

It is an arithmetic number, because the mean of its divisors is an integer number (14469823876608).

Almost surely, 2^{172525787525271} is an apocalyptic number.

172525787525271 is a deficient number, since it is larger than the sum of its proper divisors (58991394500457).

172525787525271 is a wasteful number, since it uses less digits than its factorization.

172525787525271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27866462.

The product of its digits is 192080000, while the sum is 66.

The spelling of 172525787525271 in words is "one hundred seventy-two trillion, five hundred twenty-five billion, seven hundred eighty-seven million, five hundred twenty-five thousand, two hundred seventy-one".