628425061 has 4 divisors (see below), whose sum is σ = 685554624. Its totient is φ = 571295500.

The previous prime is 628425053. The next prime is 628425071. The reversal of 628425061 is 160524826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628425061 - 2³ = 628425053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628425001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28564765 + ... + 28564786.

It is an arithmetic number, because the mean of its divisors is an integer number (171388656).

Almost surely, 2^628425061 is an apocalyptic number.

It is an amenable number.

628425061 is a deficient number, since it is larger than the sum of its proper divisors (57129563).

628425061 is a wasteful number, since it uses less digits than its factorization.

628425061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57129562.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 628425061 is about 25068.4076279288. The cubic root of 628425061 is about 856.5469348900.

Adding to 628425061 its reverse (160524826), we get a palindrome (788949887).

The spelling of 628425061 in words is "six hundred twenty-eight million, four hundred twenty-five thousand, sixty-one".