628300553 has 2 divisors, whose sum is σ = 628300554. Its totient is φ = 628300552.

The previous prime is 628300507. The next prime is 628300583. The reversal of 628300553 is 355003826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 625650169 + 2650384 = 25013^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 628300553 - 2⁶ = 628300489 is a prime.

It is not a weakly prime, because it can be changed into another prime (628300583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314150276 + 314150277.

It is an arithmetic number, because the mean of its divisors is an integer number (314150277).

Almost surely, 2^628300553 is an apocalyptic number.

It is an amenable number.

628300553 is a deficient number, since it is larger than the sum of its proper divisors (1).

628300553 is an equidigital number, since it uses as much as digits as its factorization.

628300553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 628300553 is about 25065.9241401549. The cubic root of 628300553 is about 856.4903627828.

The spelling of 628300553 in words is "six hundred twenty-eight million, three hundred thousand, five hundred fifty-three".