155030850 has 72 divisors (see below), whose sum is σ = 448572852. Its totient is φ = 38160000.

The previous prime is 155030849. The next prime is 155030857. The reversal of 155030850 is 58030551.

155030850 is a `hidden beast` number, since 1 + 550 + 30 + 85 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 20169081 + 134861769 = 4491^2 + 11613^2 .

It is not an unprimeable number, because it can be changed into a prime (155030857) by changing a digit.

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 in 35 ways as a sum of consecutive naturals, for example, 7401 + ... + 19100.

Almost surely, 2^155030850 is an apocalyptic number.

155030850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155030850 is an abundant number, since it is smaller than the sum of its proper divisors (293542002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155030850 is a wasteful number, since it uses less digits than its factorization.

155030850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26532 (or 26524 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155030850 is about 12451.1385021612. The cubic root of 155030850 is about 537.2041710859.

It can be divided in two parts, 1550 and 30850, that added together give a square (32400 = 180²).

The spelling of 155030850 in words is "one hundred fifty-five million, thirty thousand, eight hundred fifty".