1626105625 has 15 divisors (see below), whose sum is σ = 2033242123. Its totient is φ = 1300078000.

The previous prime is 1626105619. The next prime is 1626105653. The reversal of 1626105625 is 5265016261.

The square root of 1626105625 is 40325.

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

It can be written as a sum of positive squares in 7 ways, for example, as 1065173769 + 560931856 = 32637^2 + 23684^2 .

It is not a de Polignac number, because 1626105625 - 2⁹ = 1626105113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1007319 + ... + 1008931.

Almost surely, 2^1626105625 is an apocalyptic number.

1626105625 is the 40325-th square number.

1626105625 is the 20163-rd centered octagonal number.

It is an amenable number.

1626105625 is a deficient number, since it is larger than the sum of its proper divisors (407136498).

1626105625 is an frugal number, since it uses more digits than its factorization.

1626105625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The cubic root of 1626105625 is about 1175.9339187362.

The spelling of 1626105625 in words is "one billion, six hundred twenty-six million, one hundred five thousand, six hundred twenty-five".