155232200 has 36 divisors (see below), whose sum is σ = 361324995. Its totient is φ = 62022400.

The previous prime is 155232179. The next prime is 155232247. The reversal of 155232200 is 2232551.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 12716356 + 142515844 = 3566^2 + 11938^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8810.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 175760 + ... + 176640.

Almost surely, 2^155232200 is an apocalyptic number.

155232200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155232200 is an abundant number, since it is smaller than the sum of its proper divisors (206092795).

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

155232200 is an frugal number, since it uses more digits than its factorization.

155232200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 155232200 is about 12459.2214845070. The cubic root of 155232200 is about 537.4366393675.

Adding to 155232200 its reverse (2232551), we get a palindrome (157464751).

The spelling of 155232200 in words is "one hundred fifty-five million, two hundred thirty-two thousand, two hundred".