155050530 has 64 divisors (see below), whose sum is σ = 397440000. Its totient is φ = 38626560.

The previous prime is 155050487. The next prime is 155050537. The reversal of 155050530 is 35050551.

It is a self number, because there is not a number n which added to its sum of digits gives 155050530.

It is not an unprimeable number, because it can be changed into a prime (155050537) 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 31 ways as a sum of consecutive naturals, for example, 24096 + ... + 29844.

It is an arithmetic number, because the mean of its divisors is an integer number (6210000).

Almost surely, 2^155050530 is an apocalyptic number.

155050530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155050530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198720000).

155050530 is an abundant number, since it is smaller than the sum of its proper divisors (242389470).

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

155050530 is a wasteful number, since it uses less digits than its factorization.

155050530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 155050530 is about 12451.9287662595. The cubic root of 155050530 is about 537.2269014667.

The spelling of 155050530 in words is "one hundred fifty-five million, fifty thousand, five hundred thirty".