425617109 has 4 divisors (see below), whose sum is σ = 428328204. Its totient is φ = 422906016.

The previous prime is 425617103. The next prime is 425617133. The reversal of 425617109 is 901716524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84180625 + 341436484 = 9175^2 + 18478^2 .

It is a cyclic number.

It is not a de Polignac number, because 425617109 - 2¹⁶ = 425551573 is a prime.

It is a super-2 number, since 2×425617109² = 362299846947035762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425617103) 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 3 ways as a sum of consecutive naturals, for example, 1355312 + ... + 1355625.

It is an arithmetic number, because the mean of its divisors is an integer number (107082051).

Almost surely, 2^425617109 is an apocalyptic number.

It is an amenable number.

425617109 is a deficient number, since it is larger than the sum of its proper divisors (2711095).

425617109 is a wasteful number, since it uses less digits than its factorization.

425617109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711094.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 425617109 is about 20630.4897905988. The cubic root of 425617109 is about 752.2110215140.

The spelling of 425617109 in words is "four hundred twenty-five million, six hundred seventeen thousand, one hundred nine".