155928385 has 16 divisors (see below), whose sum is σ = 198941184. Its totient is φ = 117063232.

The previous prime is 155928379. The next prime is 155928407. The reversal of 155928385 is 583829551.

It is a cyclic number.

It is not a de Polignac number, because 155928385 - 2⁹ = 155927873 is a prime.

It is a super-2 number, since 2×155928385² = 48627322497416450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6697 + ... + 18886.

It is an arithmetic number, because the mean of its divisors is an integer number (12433824).

Almost surely, 2^155928385 is an apocalyptic number.

It is an amenable number.

155928385 is a deficient number, since it is larger than the sum of its proper divisors (43012799).

155928385 is a wasteful number, since it uses less digits than its factorization.

155928385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25664.

The product of its digits is 432000, while the sum is 46.

The square root of 155928385 is about 12487.1287732609. The cubic root of 155928385 is about 538.2388727943.

The spelling of 155928385 in words is "one hundred fifty-five million, nine hundred twenty-eight thousand, three hundred eighty-five".