1625460489 has 27 divisors (see below), whose sum is σ = 2390394279. Its totient is φ = 1064368800.

The previous prime is 1625460461. The next prime is 1625460533. The reversal of 1625460489 is 9840645261.

The square root of 1625460489 is 40317.

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

1625460489 is a `hidden beast` number, since 1 + 62 + 54 + 60 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 312122889 + 1313337600 = 17667^2 + 36240^2 .

It is not a de Polignac number, because 1625460489 - 2¹¹ = 1625458441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1625460449) 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 26 ways as a sum of consecutive naturals, for example, 10764564 + ... + 10764714.

Almost surely, 2^1625460489 is an apocalyptic number.

1625460489 is the 40317-th square number.

1625460489 is the 20159-th centered octagonal number.

It is an amenable number.

1625460489 is a deficient number, since it is larger than the sum of its proper divisors (764933790).

1625460489 is an frugal number, since it uses more digits than its factorization.

1625460489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The cubic root of 1625460489 is about 1175.7783860653.

The spelling of 1625460489 in words is "one billion, six hundred twenty-five million, four hundred sixty thousand, four hundred eighty-nine".