172457425 has 12 divisors (see below), whose sum is σ = 244397056. Its totient is φ = 118256400.

The previous prime is 172457377. The next prime is 172457437. The reversal of 172457425 is 524754271.

It is not a de Polignac number, because 172457425 - 2⁷ = 172457297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492561 + ... + 492910.

Almost surely, 2^172457425 is an apocalyptic number.

It is an amenable number.

172457425 is a deficient number, since it is larger than the sum of its proper divisors (71939631).

172457425 is an equidigital number, since it uses as much as digits as its factorization.

172457425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985488 (or 985483 counting only the distinct ones).

The product of its digits is 78400, while the sum is 37.

The square root of 172457425 is about 13132.3046339932. The cubic root of 172457425 is about 556.6223396084.

The spelling of 172457425 in words is "one hundred seventy-two million, four hundred fifty-seven thousand, four hundred twenty-five".