425611 has 4 divisors (see below), whose sum is σ = 437152. Its totient is φ = 414072.

The previous prime is 425609. The next prime is 425641. The reversal of 425611 is 116524.

425611 = T₂₆ + T₂₇ + ... + T₁₃₆.

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

It is a cyclic number.

It is not a de Polignac number, because 425611 - 2¹ = 425609 is a prime.

It is a super-2 number, since 2×425611² = 362289446642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5715 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (109288).

2⁴²⁵⁶¹¹ is an apocalyptic number.

425611 is a deficient number, since it is larger than the sum of its proper divisors (11541).

425611 is a wasteful number, since it uses less digits than its factorization.

425611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11540.

The product of its digits is 240, while the sum is 19.

The square root of 425611 is about 652.3886878234. The cubic root of 425611 is about 75.2207422599.

The spelling of 425611 in words is "four hundred twenty-five thousand, six hundred eleven".