655425100 has 72 divisors (see below), whose sum is σ = 1578024000. Its totient is φ = 234273600.

The previous prime is 655425091. The next prime is 655425109. The reversal of 655425100 is 1524556.

655425100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (655425091) and next prime (655425109).

It is not an unprimeable number, because it can be changed into a prime (655425109) 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, 59851 + ... + 69949.

It is an arithmetic number, because the mean of its divisors is an integer number (21917000).

Almost surely, 2^655425100 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 655425100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789012000).

655425100 is an abundant number, since it is smaller than the sum of its proper divisors (922598900).

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

655425100 is a wasteful number, since it uses less digits than its factorization.

655425100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10183 (or 10176 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 655425100 is about 25601.2714528009. The cubic root of 655425100 is about 868.6423975213.

Adding to 655425100 its reverse (1524556), we get a palindrome (656949656).

The spelling of 655425100 in words is "six hundred fifty-five million, four hundred twenty-five thousand, one hundred".