155080280 has 64 divisors (see below), whose sum is σ = 368928000. Its totient is φ = 58506624.

The previous prime is 155080267. The next prime is 155080291. The reversal of 155080280 is 82080551.

155080280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318197 + ... + 318683.

It is an arithmetic number, because the mean of its divisors is an integer number (5764500).

Almost surely, 2^155080280 is an apocalyptic number.

155080280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155080280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184464000).

155080280 is an abundant number, since it is smaller than the sum of its proper divisors (213847720).

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

155080280 is a wasteful number, since it uses less digits than its factorization.

155080280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 155080280 is about 12453.1233030112. The cubic root of 155080280 is about 537.2612590365.

The spelling of 155080280 in words is "one hundred fifty-five million, eighty thousand, two hundred eighty".