155511125 has 64 divisors (see below), whose sum is σ = 245846016. Its totient is φ = 95400000.

The previous prime is 155511089. The next prime is 155511127. The reversal of 155511125 is 521115551.

It is not a de Polignac number, because 155511125 - 2⁶ = 155511061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155511094 and 155511103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155511127) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1029800 + ... + 1029950.

It is an arithmetic number, because the mean of its divisors is an integer number (3841344).

Almost surely, 2^155511125 is an apocalyptic number.

It is an amenable number.

155511125 is a deficient number, since it is larger than the sum of its proper divisors (90334891).

155511125 is a wasteful number, since it uses less digits than its factorization.

155511125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 281 counting only the distinct ones).

The product of its digits is 1250, while the sum is 26.

The square root of 155511125 is about 12470.4099772221. The cubic root of 155511125 is about 537.7583398483.

Adding to 155511125 its reverse (521115551), we get a palindrome (676626676).

The spelling of 155511125 in words is "one hundred fifty-five million, five hundred eleven thousand, one hundred twenty-five".