425215515 has 16 divisors (see below), whose sum is σ = 681051168. Its totient is φ = 226546176.

The previous prime is 425215493. The next prime is 425215529. The reversal of 425215515 is 515512524.

It is not a de Polignac number, because 425215515 - 2⁶ = 425215451 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 739 + ... + 29171.

It is an arithmetic number, because the mean of its divisors is an integer number (42565698).

Almost surely, 2^425215515 is an apocalyptic number.

425215515 is a deficient number, since it is larger than the sum of its proper divisors (255835653).

425215515 is a wasteful number, since it uses less digits than its factorization.

425215515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29438.

The product of its digits is 10000, while the sum is 30.

The square root of 425215515 is about 20620.7544721332. The cubic root of 425215515 is about 751.9743624078.

The spelling of 425215515 in words is "four hundred twenty-five million, two hundred fifteen thousand, five hundred fifteen".