628252265 has 4 divisors (see below), whose sum is σ = 753902724. Its totient is φ = 502601808.

The previous prime is 628252241. The next prime is 628252277. The reversal of 628252265 is 562252826.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 483868009 + 144384256 = 21997^2 + 12016^2 .

It is a cyclic number.

It is not a de Polignac number, because 628252265 - 2²⁴ = 611475049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62825222 + ... + 62825231.

It is an arithmetic number, because the mean of its divisors is an integer number (188475681).

Almost surely, 2^628252265 is an apocalyptic number.

It is an amenable number.

628252265 is a deficient number, since it is larger than the sum of its proper divisors (125650459).

628252265 is a wasteful number, since it uses less digits than its factorization.

628252265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125650458.

The product of its digits is 115200, while the sum is 38.

The square root of 628252265 is about 25064.9609016252. The cubic root of 628252265 is about 856.4684203827.

The spelling of 628252265 in words is "six hundred twenty-eight million, two hundred fifty-two thousand, two hundred sixty-five".