155552000 has 72 divisors (see below), whose sum is σ = 387579192. Its totient is φ = 62208000.

The previous prime is 155551997. The next prime is 155552011. The reversal of 155552000 is 255551.

155552000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 200704 + 155351296 = 448^2 + 12464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29570 + ... + 34430.

Almost surely, 2^155552000 is an apocalyptic number.

155552000 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 155552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193789596).

155552000 is an abundant number, since it is smaller than the sum of its proper divisors (232027192).

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

155552000 is an frugal number, since it uses more digits than its factorization.

155552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892 (or 4868 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 155552000 is about 12472.0487491029. The cubic root of 155552000 is about 537.8054510471.

The spelling of 155552000 in words is "one hundred fifty-five million, five hundred fifty-two thousand".