153020556 has 96 divisors (see below), whose sum is σ = 433379520. Its totient is φ = 46407168.

The previous prime is 153020447. The next prime is 153020561. The reversal of 153020556 is 655020351.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 101746 + ... + 103238.

It is an arithmetic number, because the mean of its divisors is an integer number (4514370).

Almost surely, 2^153020556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153020556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216689760).

153020556 is an abundant number, since it is smaller than the sum of its proper divisors (280358964).

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

153020556 is a wasteful number, since it uses less digits than its factorization.

153020556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 153020556 is about 12370.1477759969. The cubic root of 153020556 is about 534.8720758575.

The spelling of 153020556 in words is "one hundred fifty-three million, twenty thousand, five hundred fifty-six".