155805536 has 48 divisors (see below), whose sum is σ = 312847920. Its totient is φ = 76369920.

The previous prime is 155805451. The next prime is 155805539. The reversal of 155805536 is 635508551.

It is a self number, because there is not a number n which added to its sum of digits gives 155805536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155805539) 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, 646376 + ... + 646616.

It is an arithmetic number, because the mean of its divisors is an integer number (6517665).

Almost surely, 2^155805536 is an apocalyptic number.

155805536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155805536 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

155805536 is a wasteful number, since it uses less digits than its factorization.

155805536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 155805536 is about 12482.2087788981. The cubic root of 155805536 is about 538.0974842122.

The spelling of 155805536 in words is "one hundred fifty-five million, eight hundred five thousand, five hundred thirty-six".