656005252 has 24 divisors (see below), whose sum is σ = 1312557120. Its totient is φ = 281028000.

The previous prime is 656005243. The next prime is 656005253. The reversal of 656005252 is 252500656.

It is not an unprimeable number, because it can be changed into a prime (656005253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 116502 + ... + 122002.

It is an arithmetic number, because the mean of its divisors is an integer number (54689880).

Almost surely, 2^656005252 is an apocalyptic number.

It is an amenable number.

656005252 is an abundant number, since it is smaller than the sum of its proper divisors (656551868).

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

656005252 is a wasteful number, since it uses less digits than its factorization.

656005252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9771 (or 9769 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 656005252 is about 25612.5994776009. The cubic root of 656005252 is about 868.8986159704.

The spelling of 656005252 in words is "six hundred fifty-six million, five thousand, two hundred fifty-two".