245558 has 8 divisors (see below), whose sum is σ = 374760. Its totient is φ = 120640.

The previous prime is 245533. The next prime is 245561. The reversal of 245558 is 855542.

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

It is a super-3 number, since 3×245558³ = 44420507628843336, which contains 333 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 245558.

It is a congruent number.

It is an unprimeable number.

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, 923 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (46845).

2²⁴⁵⁵⁵⁸ is an apocalyptic number.

245558 is a deficient number, since it is larger than the sum of its proper divisors (129202).

245558 is a wasteful number, since it uses less digits than its factorization.

245558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its digits is 8000, while the sum is 29.

The square root of 245558 is about 495.5380913714. The cubic root of 245558 is about 62.6207160255.

The spelling of 245558 in words is "two hundred forty-five thousand, five hundred fifty-eight".