628557053 has 2 divisors, whose sum is σ = 628557054. Its totient is φ = 628557052.

The previous prime is 628557047. The next prime is 628557067. The reversal of 628557053 is 350755826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576096004 + 52461049 = 24002^2 + 7243^2 .

It is a cyclic number.

It is not a de Polignac number, because 628557053 - 2⁶ = 628556989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628557053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628547053) by changing a digit.

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 as a sum of consecutive naturals, namely, 314278526 + 314278527.

It is an arithmetic number, because the mean of its divisors is an integer number (314278527).

Almost surely, 2^628557053 is an apocalyptic number.

It is an amenable number.

628557053 is a deficient number, since it is larger than the sum of its proper divisors (1).

628557053 is an equidigital number, since it uses as much as digits as its factorization.

628557053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 628557053 is about 25071.0401260099. The cubic root of 628557053 is about 856.6068993077.

The spelling of 628557053 in words is "six hundred twenty-eight million, five hundred fifty-seven thousand, fifty-three".