155085875 has 24 divisors (see below), whose sum is σ = 221723424. Its totient is φ = 106092000.

The previous prime is 155085871. The next prime is 155085913. The reversal of 155085875 is 578580551.

It is not a de Polignac number, because 155085875 - 2² = 155085871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155085871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368165 + ... + 368585.

It is an arithmetic number, because the mean of its divisors is an integer number (9238476).

Almost surely, 2^155085875 is an apocalyptic number.

155085875 is a deficient number, since it is larger than the sum of its proper divisors (66637549).

155085875 is an frugal number, since it uses more digits than its factorization.

155085875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 44.

The square root of 155085875 is about 12453.3479434247. The cubic root of 155085875 is about 537.2677200785.

The spelling of 155085875 in words is "one hundred fifty-five million, eighty-five thousand, eight hundred seventy-five".