657552012 has 48 divisors (see below), whose sum is σ = 1696982112. Its totient is φ = 196853760.

The previous prime is 657551989. The next prime is 657552017. The reversal of 657552012 is 210255756.

It is not an unprimeable number, because it can be changed into a prime (657552017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51189 + ... + 62732.

It is an arithmetic number, because the mean of its divisors is an integer number (35353794).

Almost surely, 2^657552012 is an apocalyptic number.

It is an amenable number.

657552012 is an abundant number, since it is smaller than the sum of its proper divisors (1039430100).

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

657552012 is a wasteful number, since it uses less digits than its factorization.

657552012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113978 (or 113976 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 657552012 is about 25642.7769947016. The cubic root of 657552012 is about 869.5809899314.

The spelling of 657552012 in words is "six hundred fifty-seven million, five hundred fifty-two thousand, twelve".