155527028 has 6 divisors (see below), whose sum is σ = 272172306. Its totient is φ = 77763512.

The previous prime is 155527019. The next prime is 155527079. The reversal of 155527028 is 820725551.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 75030244 = 8972^2 + 8662^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19440875 + ... + 19440882.

It is an arithmetic number, because the mean of its divisors is an integer number (45362051).

Almost surely, 2^155527028 is an apocalyptic number.

It is an amenable number.

155527028 is a deficient number, since it is larger than the sum of its proper divisors (116645278).

155527028 is a wasteful number, since it uses less digits than its factorization.

155527028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38881761 (or 38881759 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 155527028 is about 12471.0475903189. The cubic root of 155527028 is about 537.7766701111.

The spelling of 155527028 in words is "one hundred fifty-five million, five hundred twenty-seven thousand, twenty-eight".