425587 has 4 divisors (see below), whose sum is σ = 427816. Its totient is φ = 423360.

The previous prime is 425563. The next prime is 425591. The reversal of 425587 is 785524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425587 is a prime.

It is a super-2 number, since 2×425587² = 362248589138, which contains 22 as substring.

It is a Duffinian number.

425587 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (425387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (106954).

2⁴²⁵⁵⁸⁷ is an apocalyptic number.

425587 is a deficient number, since it is larger than the sum of its proper divisors (2229).

425587 is a wasteful number, since it uses less digits than its factorization.

425587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its digits is 11200, while the sum is 31.

The square root of 425587 is about 652.3702936217. The cubic root of 425587 is about 75.2193283462.

The spelling of 425587 in words is "four hundred twenty-five thousand, five hundred eighty-seven".