628352425 has 12 divisors (see below), whose sum is σ = 806025420. Its totient is φ = 485347520.

The previous prime is 628352383. The next prime is 628352441. The reversal of 628352425 is 524253826.

It can be written as a sum of positive squares in 6 ways, for example, as 2752281 + 625600144 = 1659^2 + 25012^2 .

It is a de Polignac number, because none of the positive numbers 2^k-628352425 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432622 + ... + 434071.

It is an arithmetic number, because the mean of its divisors is an integer number (67168785).

Almost surely, 2^628352425 is an apocalyptic number.

It is an amenable number.

628352425 is a deficient number, since it is larger than the sum of its proper divisors (177672995).

628352425 is a wasteful number, since it uses less digits than its factorization.

628352425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866732 (or 866727 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 628352425 is about 25066.9588303009. The cubic root of 628352425 is about 856.5139325246.

The spelling of 628352425 in words is "six hundred twenty-eight million, three hundred fifty-two thousand, four hundred twenty-five".