56440461 has 32 divisors (see below), whose sum is σ = 95136768. Its totient is φ = 28909440.

The previous prime is 56440441. The next prime is 56440463. The reversal of 56440461 is 16404465.

It is not a de Polignac number, because 56440461 - 2⁷ = 56440333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15190 + ... + 18536.

It is an arithmetic number, because the mean of its divisors is an integer number (2973024).

Almost surely, 2^56440461 is an apocalyptic number.

It is an amenable number.

56440461 is a deficient number, since it is larger than the sum of its proper divisors (38696307).

56440461 is a wasteful number, since it uses less digits than its factorization.

56440461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 56440461 is about 7512.6866698938. The cubic root of 56440461 is about 383.5866795747.

It can be divided in two parts, 564404 and 61, that added together give a palindrome (564465).

The spelling of 56440461 in words is "fifty-six million, four hundred forty thousand, four hundred sixty-one".