155233800 has 384 divisors, whose sum is σ = 602640000. Its totient is φ = 36495360.

The previous prime is 155233789. The next prime is 155233801. The reversal of 155233800 is 8332551.

155233800 is a `hidden beast` number, since 1 + 552 + 33 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (155233801) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1744156 + ... + 1744244.

It is an arithmetic number, because the mean of its divisors is an integer number (1569375).

Almost surely, 2^155233800 is an apocalyptic number.

155233800 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 155233800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301320000).

155233800 is an abundant number, since it is smaller than the sum of its proper divisors (447406200).

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

155233800 is a wasteful number, since it uses less digits than its factorization.

155233800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 155233800 is about 12459.2856938109. The cubic root of 155233800 is about 537.4384858393.

The spelling of 155233800 in words is "one hundred fifty-five million, two hundred thirty-three thousand, eight hundred".