153255720 has 128 divisors (see below), whose sum is σ = 486259200. Its totient is φ = 38578176.

The previous prime is 153255709. The next prime is 153255761. The reversal of 153255720 is 27552351.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 163092 + ... + 164028.

It is an arithmetic number, because the mean of its divisors is an integer number (3798900).

Almost surely, 2^153255720 is an apocalyptic number.

153255720 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 153255720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243129600).

153255720 is an abundant number, since it is smaller than the sum of its proper divisors (333003480).

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

153255720 is a wasteful number, since it uses less digits than its factorization.

153255720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 153255720 is about 12379.6494296083. The cubic root of 153255720 is about 535.1459350920.

The spelling of 153255720 in words is "one hundred fifty-three million, two hundred fifty-five thousand, seven hundred twenty".