425516289 has 8 divisors (see below), whose sum is σ = 618932832. Its totient is φ = 257888640.

The previous prime is 425516279. The next prime is 425516293. The reversal of 425516289 is 982615524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425516289 - 2⁹ = 425515777 is a prime.

It is a super-2 number, since 2×425516289² = 362128224408663042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425516289.

It is not an unprimeable number, because it can be changed into a prime (425516269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6447184 + ... + 6447249.

It is an arithmetic number, because the mean of its divisors is an integer number (77366604).

Almost surely, 2^425516289 is an apocalyptic number.

It is an amenable number.

425516289 is a deficient number, since it is larger than the sum of its proper divisors (193416543).

425516289 is a wasteful number, since it uses less digits than its factorization.

425516289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894447.

The product of its digits is 172800, while the sum is 42.

The square root of 425516289 is about 20628.0461750501. The cubic root of 425516289 is about 752.1516223478.

The spelling of 425516289 in words is "four hundred twenty-five million, five hundred sixteen thousand, two hundred eighty-nine".