56989045 has 16 divisors (see below), whose sum is σ = 70543872. Its totient is φ = 44175040.

The previous prime is 56989039. The next prime is 56989069. The reversal of 56989045 is 54098965.

It is not a de Polignac number, because 56989045 - 2¹⁷ = 56857973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56988986 and 56989004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20700 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (4408992).

Almost surely, 2^56989045 is an apocalyptic number.

It is an amenable number.

56989045 is a deficient number, since it is larger than the sum of its proper divisors (13554827).

56989045 is a wasteful number, since it uses less digits than its factorization.

56989045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 56989045 is about 7549.1088878092. The cubic root of 56989045 is about 384.8254563843.

It can be divided in two parts, 569 and 89045, that multiplied together give a palindrome (50666605).

The spelling of 56989045 in words is "fifty-six million, nine hundred eighty-nine thousand, forty-five".