425617 has 4 divisors (see below), whose sum is σ = 427120. Its totient is φ = 424116.

The previous prime is 425609. The next prime is 425641. The reversal of 425617 is 716524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425617 - 2³ = 425609 is a prime.

It is a super-2 number, since 2×425617² = 362299661378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425591 and 425600.

It is not an unprimeable number, because it can be changed into a prime (425317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183 + ... + 940.

It is an arithmetic number, because the mean of its divisors is an integer number (106780).

2⁴²⁵⁶¹⁷ is an apocalyptic number.

It is an amenable number.

425617 is a deficient number, since it is larger than the sum of its proper divisors (1503).

425617 is a wasteful number, since it uses less digits than its factorization.

425617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502.

The product of its digits is 1680, while the sum is 25.

The square root of 425617 is about 652.3932862929. The cubic root of 425617 is about 75.2210957301.

The spelling of 425617 in words is "four hundred twenty-five thousand, six hundred seventeen".