155875500 has 288 divisors, whose sum is σ = 556028928. Its totient is φ = 36432000.

The previous prime is 155875483. The next prime is 155875501. The reversal of 155875500 is 5578551.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (155875501) 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 95 ways as a sum of consecutive naturals, for example, 2326467 + ... + 2326533.

It is an arithmetic number, because the mean of its divisors is an integer number (1930656).

Almost surely, 2^155875500 is an apocalyptic number.

155875500 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 155875500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278014464).

155875500 is an abundant number, since it is smaller than the sum of its proper divisors (400153428).

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

155875500 is a wasteful number, since it uses less digits than its factorization.

155875500 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 35000, while the sum is 36.

The square root of 155875500 is about 12485.0110132110. The cubic root of 155875500 is about 538.1780158364.

The spelling of 155875500 in words is "one hundred fifty-five million, eight hundred seventy-five thousand, five hundred".