657425012 has 24 divisors (see below), whose sum is σ = 1191174600. Its totient is φ = 317108736.

The previous prime is 657425011. The next prime is 657425017. The reversal of 657425012 is 210524756.

657425012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 439153936 + 218271076 = 20956^2 + 14774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 657425012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657425011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240968 + ... + 243680.

It is an arithmetic number, because the mean of its divisors is an integer number (49632275).

Almost surely, 2^657425012 is an apocalyptic number.

It is an amenable number.

657425012 is a deficient number, since it is larger than the sum of its proper divisors (533749588).

657425012 is a wasteful number, since it uses less digits than its factorization.

657425012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835 (or 4833 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 657425012 is about 25640.3005442604. The cubic root of 657425012 is about 869.5250025244.

Adding to 657425012 its reverse (210524756), we get a palindrome (867949768).

The spelling of 657425012 in words is "six hundred fifty-seven million, four hundred twenty-five thousand, twelve".