425635 has 8 divisors (see below), whose sum is σ = 583776. Its totient is φ = 291840.

The previous prime is 425609. The next prime is 425641. The reversal of 425635 is 536524.

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

It is not a de Polignac number, because 425635 - 2⁵ = 425603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (72972).

2⁴²⁵⁶³⁵ is an apocalyptic number.

425635 is a deficient number, since it is larger than the sum of its proper divisors (158141).

425635 is a wasteful number, since it uses less digits than its factorization.

425635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173.

The product of its digits is 3600, while the sum is 25.

The square root of 425635 is about 652.4070815066. The cubic root of 425635 is about 75.2221561205. Note that the first 3 decimals are identical.

Subtracting 425635 from its reverse (536524), we obtain a square (110889 = 333²).

The spelling of 425635 in words is "four hundred twenty-five thousand, six hundred thirty-five".