155153500 has 48 divisors (see below), whose sum is σ = 344477952. Its totient is φ = 61032000.

The previous prime is 155153497. The next prime is 155153507. The reversal of 155153500 is 5351551.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155153507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27957 + ... + 33043.

It is an arithmetic number, because the mean of its divisors is an integer number (7176624).

Almost surely, 2^155153500 is an apocalyptic number.

155153500 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 155153500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172238976).

155153500 is an abundant number, since it is smaller than the sum of its proper divisors (189324452).

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

155153500 is a wasteful number, since it uses less digits than its factorization.

155153500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167 (or 5155 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 155153500 is about 12456.0627808309. The cubic root of 155153500 is about 537.3458003677.

It can be divided in two parts, 15 and 5153500, that added together give a palindrome (5153515).

The spelling of 155153500 in words is "one hundred fifty-five million, one hundred fifty-three thousand, five hundred".