155925 has 60 divisors (see below), whose sum is σ = 360096. Its totient is φ = 64800.

The previous prime is 155921. The next prime is 156007. The reversal of 155925 is 529551.

It is not a de Polignac number, because 155925 - 2² = 155921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 155925.

It is not an unprimeable number, because it can be changed into a prime (155921) 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 59 ways as a sum of consecutive naturals, for example, 14170 + ... + 14180.

2¹⁵⁵⁹²⁵ is an apocalyptic number.

155925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155925 is an abundant number, since it is smaller than the sum of its proper divisors (204171).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155925 is a wasteful number, since it uses less digits than its factorization.

155925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40 (or 26 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 155925 is about 394.8733974326. The cubic root of 155925 is about 53.8234977947.

155925 divided by its sum of digits (27) gives a palindrome (5775).

The spelling of 155925 in words is "one hundred fifty-five thousand, nine hundred twenty-five".