425171505 has 16 divisors (see below), whose sum is σ = 742117824. Its totient is φ = 206143680.

The previous prime is 425171503. The next prime is 425171611. The reversal of 425171505 is 505171524.

It is not a de Polignac number, because 425171505 - 2¹ = 425171503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425171503) 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, 1288234 + ... + 1288563.

It is an arithmetic number, because the mean of its divisors is an integer number (46382364).

Almost surely, 2^425171505 is an apocalyptic number.

It is an amenable number.

425171505 is a deficient number, since it is larger than the sum of its proper divisors (316946319).

425171505 is a wasteful number, since it uses less digits than its factorization.

425171505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576816.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 425171505 is about 20619.6873157669. The cubic root of 425171505 is about 751.9484182827.

The spelling of 425171505 in words is "four hundred twenty-five million, one hundred seventy-one thousand, five hundred five".