625217412 has 24 divisors (see below), whose sum is σ = 1469980512. Its totient is φ = 206814400.

The previous prime is 625217389. The next prime is 625217423. The reversal of 625217412 is 214712526.

It is a self number, because there is not a number n which added to its sum of digits gives 625217412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197289 + ... + 200432.

It is an arithmetic number, because the mean of its divisors is an integer number (61249188).

Almost surely, 2^625217412 is an apocalyptic number.

It is an amenable number.

625217412 is an abundant number, since it is smaller than the sum of its proper divisors (844763100).

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

625217412 is a wasteful number, since it uses less digits than its factorization.

625217412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397859 (or 397857 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 625217412 is about 25004.3478619219. The cubic root of 625217412 is about 855.0871003226.

Adding to 625217412 its reverse (214712526), we get a palindrome (839929938).

The spelling of 625217412 in words is "six hundred twenty-five million, two hundred seventeen thousand, four hundred twelve".