655249452 has 96 divisors (see below), whose sum is σ = 1802459904. Its totient is φ = 182649600.

The previous prime is 655249433. The next prime is 655249459. The reversal of 655249452 is 254942556.

It is not an unprimeable number, because it can be changed into a prime (655249459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721983 + ... + 722889.

It is an arithmetic number, because the mean of its divisors is an integer number (18775624).

Almost surely, 2^655249452 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 655249452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901229952).

655249452 is an abundant number, since it is smaller than the sum of its proper divisors (1147210452).

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

655249452 is a wasteful number, since it uses less digits than its factorization.

655249452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1357 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 655249452 is about 25597.8407683148. The cubic root of 655249452 is about 868.5647944860.

The spelling of 655249452 in words is "six hundred fifty-five million, two hundred forty-nine thousand, four hundred fifty-two".