56441649 has 16 divisors (see below), whose sum is σ = 86927040. Its totient is φ = 32194560.

The previous prime is 56441639. The next prime is 56441659. The reversal of 56441649 is 94614465.

It is an interprime number because it is at equal distance from previous prime (56441639) and next prime (56441659).

It is not a de Polignac number, because 56441649 - 2⁴ = 56441633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56441639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49744 + ... + 50865.

It is an arithmetic number, because the mean of its divisors is an integer number (5432940).

Almost surely, 2^56441649 is an apocalyptic number.

It is an amenable number.

56441649 is a deficient number, since it is larger than the sum of its proper divisors (30485391).

56441649 is a wasteful number, since it uses less digits than its factorization.

56441649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100640.

The product of its digits is 103680, while the sum is 39.

The square root of 56441649 is about 7512.7657357327. The cubic root of 56441649 is about 383.5893708932.

It can be divided in two parts, 564416 and 49, that added together give a palindrome (564465).

The spelling of 56441649 in words is "fifty-six million, four hundred forty-one thousand, six hundred forty-nine".