155825 has 12 divisors (see below), whose sum is σ = 202368. Its totient is φ = 118800.

The previous prime is 155821. The next prime is 155833. The reversal of 155825 is 528551.

It is not a de Polignac number, because 155825 - 2² = 155821 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 155794 and 155803.

It is not an unprimeable number, because it can be changed into a prime (155821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (16864).

2¹⁵⁵⁸²⁵ is an apocalyptic number.

It is an amenable number.

155825 is a deficient number, since it is larger than the sum of its proper divisors (46543).

155825 is a wasteful number, since it uses less digits than its factorization.

155825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 299 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 155825 is about 394.7467542615. The cubic root of 155825 is about 53.8119890548.

The spelling of 155825 in words is "one hundred fifty-five thousand, eight hundred twenty-five".