155085585 has 8 divisors (see below), whose sum is σ = 248136960. Its totient is φ = 82712304.

The previous prime is 155085569. The next prime is 155085587. The reversal of 155085585 is 585580551.

155085585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155085585 - 2⁴ = 155085569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155085587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169505 + ... + 5169534.

It is an arithmetic number, because the mean of its divisors is an integer number (31017120).

Almost surely, 2^155085585 is an apocalyptic number.

155085585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155085585 is a deficient number, since it is larger than the sum of its proper divisors (93051375).

155085585 is a wasteful number, since it uses less digits than its factorization.

155085585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10339047.

The product of its (nonzero) digits is 200000, while the sum is 42.

The square root of 155085585 is about 12453.3362999640. The cubic root of 155085585 is about 537.2673851936.

The spelling of 155085585 in words is "one hundred fifty-five million, eighty-five thousand, five hundred eighty-five".