1654455625 has 15 divisors (see below), whose sum is σ = 2068679217. Its totient is φ = 1322751000.

The previous prime is 1654455617. The next prime is 1654455631. The reversal of 1654455625 is 5265544561.

The square root of 1654455625 is 40675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 129709321 + 1524746304 = 11389^2 + 39048^2 .

It is not a de Polignac number, because 1654455625 - 2³ = 1654455617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 14 ways as a sum of consecutive naturals, for example, 1016062 + ... + 1017688.

Almost surely, 2^1654455625 is an apocalyptic number.

1654455625 is the 40675-th square number.

1654455625 is the 20338-th centered octagonal number.

It is an amenable number.

1654455625 is a deficient number, since it is larger than the sum of its proper divisors (414223592).

1654455625 is an frugal number, since it uses more digits than its factorization.

1654455625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274 (or 1632 counting only the distinct ones).

The product of its digits is 720000, while the sum is 43.

The cubic root of 1654455625 is about 1182.7284428591.

The spelling of 1654455625 in words is "one billion, six hundred fifty-four million, four hundred fifty-five thousand, six hundred twenty-five".