425599 has 4 divisors (see below), whose sum is σ = 439360. Its totient is φ = 411840.

The previous prime is 425591. The next prime is 425603. The reversal of 425599 is 995524.

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 425599 - 2³ = 425591 is a prime.

It is a super-2 number, since 2×425599² = 362269017602, which contains 22 as substring.

It is a Duffinian number.

425599 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425591) 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, 6834 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (109840).

2⁴²⁵⁵⁹⁹ is an apocalyptic number.

425599 is a deficient number, since it is larger than the sum of its proper divisors (13761).

425599 is a wasteful number, since it uses less digits than its factorization.

425599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13760.

The product of its digits is 16200, while the sum is 34.

The square root of 425599 is about 652.3794907874. The cubic root of 425599 is about 75.2200353097.

It can be divided in two parts, 425 and 599, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 425599 in words is "four hundred twenty-five thousand, five hundred ninety-nine".