656352752 has 80 divisors (see below), whose sum is σ = 1414409472. Its totient is φ = 292584960.

The previous prime is 656352743. The next prime is 656352761. The reversal of 656352752 is 257253656.

It is an interprime number because it is at equal distance from previous prime (656352743) and next prime (656352761).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3930173 + ... + 3930339.

Almost surely, 2^656352752 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 656352752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707204736).

656352752 is an abundant number, since it is smaller than the sum of its proper divisors (758056720).

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

656352752 is a wasteful number, since it uses less digits than its factorization.

656352752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 480 counting only the distinct ones).

The product of its digits is 378000, while the sum is 41.

The square root of 656352752 is about 25619.3823500880. The cubic root of 656352752 is about 869.0520136089.

The spelling of 656352752 in words is "six hundred fifty-six million, three hundred fifty-two thousand, seven hundred fifty-two".