172465725 has 24 divisors (see below), whose sum is σ = 285581920. Its totient is φ = 91840320.

The previous prime is 172465723. The next prime is 172465801. The reversal of 172465725 is 527564271.

It is not a de Polignac number, because 172465725 - 2¹ = 172465723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172465723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63087 + ... + 65763.

Almost surely, 2^172465725 is an apocalyptic number.

172465725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172465725 is a deficient number, since it is larger than the sum of its proper divisors (113116195).

172465725 is a wasteful number, since it uses less digits than its factorization.

172465725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3544 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 172465725 is about 13132.6206447914. The cubic root of 172465725 is about 556.6312691385.

The spelling of 172465725 in words is "one hundred seventy-two million, four hundred sixty-five thousand, seven hundred twenty-five".