655130252 has 72 divisors (see below), whose sum is σ = 1393249536. Its totient is φ = 263536416.

The previous prime is 655130243. The next prime is 655130257. The reversal of 655130252 is 252031556.

It is a happy number.

655130252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655130257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4019123 + ... + 4019285.

It is an arithmetic number, because the mean of its divisors is an integer number (19350688).

Almost surely, 2^655130252 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 655130252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696624768).

655130252 is an abundant number, since it is smaller than the sum of its proper divisors (738119284).

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

655130252 is a wasteful number, since it uses less digits than its factorization.

655130252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 655130252 is about 25595.5123410335. The cubic root of 655130252 is about 868.5121228397.

The spelling of 655130252 in words is "six hundred fifty-five million, one hundred thirty thousand, two hundred fifty-two".