56489145 has 16 divisors (see below), whose sum is σ = 90597312. Its totient is φ = 30056000.

The previous prime is 56489119. The next prime is 56489179. The reversal of 56489145 is 54198465.

It is not a de Polignac number, because 56489145 - 2⁹ = 56488633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56489097 and 56489106.

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 15 ways as a sum of consecutive naturals, for example, 2395 + ... + 10895.

It is an arithmetic number, because the mean of its divisors is an integer number (5662332).

Almost surely, 2^56489145 is an apocalyptic number.

It is an amenable number.

56489145 is a deficient number, since it is larger than the sum of its proper divisors (34108167).

56489145 is a wasteful number, since it uses less digits than its factorization.

56489145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952.

The product of its digits is 172800, while the sum is 42.

The square root of 56489145 is about 7515.9260906425. The cubic root of 56489145 is about 383.6969383428.

The spelling of 56489145 in words is "fifty-six million, four hundred eighty-nine thousand, one hundred forty-five".