629056561 has 9 divisors (see below), whose sum is σ = 731963961. Its totient is φ = 539040852.

The previous prime is 629056517. The next prime is 629056567. The reversal of 629056561 is 165650926.

The square root of 629056561 is 25081.

It is a perfect power (a square), and thus also a powerful number.

629056561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 629056561 - 2¹³ = 629048369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (629056567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 173776 + ... + 177358.

It is an arithmetic number, because the mean of its divisors is an integer number (81329329).

Almost surely, 2^629056561 is an apocalyptic number.

629056561 is the 25081-st square number.

629056561 is the 12541-st centered octagonal number.

It is an amenable number.

629056561 is a deficient number, since it is larger than the sum of its proper divisors (102907400).

629056561 is an frugal number, since it uses more digits than its factorization.

629056561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180 (or 3590 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The cubic root of 629056561 is about 856.8337515361.

The spelling of 629056561 in words is "six hundred twenty-nine million, fifty-six thousand, five hundred sixty-one".