172525430 has 48 divisors (see below), whose sum is σ = 390126240. Its totient is φ = 53771520.

The previous prime is 172525429. The next prime is 172525433. The reversal of 172525430 is 34525271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 172525393 and 172525402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172525433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1715 + ... + 18654.

It is an arithmetic number, because the mean of its divisors is an integer number (8127630).

Almost surely, 2^172525430 is an apocalyptic number.

172525430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172525430 is an abundant number, since it is smaller than the sum of its proper divisors (217600810).

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

172525430 is a wasteful number, since it uses less digits than its factorization.

172525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405 (or 20394 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 172525430 is about 13134.8936044416. The cubic root of 172525430 is about 556.6954941426.

The spelling of 172525430 in words is "one hundred seventy-two million, five hundred twenty-five thousand, four hundred thirty".