628798525 has 24 divisors (see below), whose sum is σ = 794393600. Its totient is φ = 493646400.

The previous prime is 628798517. The next prime is 628798531. The reversal of 628798525 is 525897826.

It is not a de Polignac number, because 628798525 - 2³ = 628798517 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 356596 + ... + 358354.

Almost surely, 2^628798525 is an apocalyptic number.

It is an amenable number.

628798525 is a deficient number, since it is larger than the sum of its proper divisors (165595075).

628798525 is a wasteful number, since it uses less digits than its factorization.

628798525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2024 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 52.

The square root of 628798525 is about 25075.8554191078. The cubic root of 628798525 is about 856.7165791412.

The spelling of 628798525 in words is "six hundred twenty-eight million, seven hundred ninety-eight thousand, five hundred twenty-five".