425518517 has 16 divisors (see below), whose sum is σ = 455254272. Its totient is φ = 396334080.

The previous prime is 425518501. The next prime is 425518519. The reversal of 425518517 is 715815524.

It is a cyclic number.

It is not a de Polignac number, because 425518517 - 2⁴ = 425518501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425518519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159268 + ... + 1159634.

It is an arithmetic number, because the mean of its divisors is an integer number (28453392).

Almost surely, 2^425518517 is an apocalyptic number.

It is an amenable number.

425518517 is a deficient number, since it is larger than the sum of its proper divisors (29735755).

425518517 is a wasteful number, since it uses less digits than its factorization.

425518517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 56000, while the sum is 38.

The square root of 425518517 is about 20628.1001791246. The cubic root of 425518517 is about 752.1529350989.

The spelling of 425518517 in words is "four hundred twenty-five million, five hundred eighteen thousand, five hundred seventeen".