155305125 has 48 divisors (see below), whose sum is σ = 282427392. Its totient is φ = 82101600.

The previous prime is 155305123. The next prime is 155305127. The reversal of 155305125 is 521503551.

155305125 is a `hidden beast` number, since 1 + 5 + 530 + 5 + 125 = 666.

It is an interprime number because it is at equal distance from previous prime (155305123) and next prime (155305127).

It is not a de Polignac number, because 155305125 - 2¹ = 155305123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155305123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142332 + ... + 143418.

It is an arithmetic number, because the mean of its divisors is an integer number (5883904).

Almost surely, 2^155305125 is an apocalyptic number.

155305125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155305125 is a deficient number, since it is larger than the sum of its proper divisors (127122267).

155305125 is a wasteful number, since it uses less digits than its factorization.

155305125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 155305125 is about 12462.1476880994. The cubic root of 155305125 is about 537.5207852067.

Adding to 155305125 its reverse (521503551), we get a palindrome (676808676).

The spelling of 155305125 in words is "one hundred fifty-five million, three hundred five thousand, one hundred twenty-five".