155625 has 20 divisors (see below), whose sum is σ = 262416. Its totient is φ = 82000.
The previous prime is 155621. The next prime is 155627. The reversal of 155625 is 526551.
155625 is nontrivially palindromic in base 2.
It is not a de Polignac number, because 155625 - 22 = 155621 is a prime.
155625 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 155595 and 155604.
It is not an unprimeable number, because it can be changed into a prime (155621) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1834 + ... + 1916.
2155625 is an apocalyptic number.
155625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
155625 is a deficient number, since it is larger than the sum of its proper divisors (106791).
155625 is an frugal number, since it uses more digits than its factorization.
155625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106 (or 91 counting only the distinct ones).
The product of its digits is 1500, while the sum is 24.
The square root of 155625 is about 394.4933459515. The cubic root of 155625 is about 53.7889567951.
It can be divided in two parts, 155 and 625, that added together give a triangular number (780 = T39).
The spelling of 155625 in words is "one hundred fifty-five thousand, six hundred twenty-five".
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