56440901 has 16 divisors (see below), whose sum is σ = 65795328. Its totient is φ = 47846400.

The previous prime is 56440877. The next prime is 56440927. The reversal of 56440901 is 10904465.

56440901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56440901 - 2⁶ = 56440837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440981) 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 15 ways as a sum of consecutive naturals, for example, 19796 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (4112208).

Almost surely, 2^56440901 is an apocalyptic number.

It is an amenable number.

56440901 is a deficient number, since it is larger than the sum of its proper divisors (9354427).

56440901 is a wasteful number, since it uses less digits than its factorization.

56440901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56440901 is about 7512.7159536349. The cubic root of 56440901 is about 383.5876763638.

The spelling of 56440901 in words is "fifty-six million, four hundred forty thousand, nine hundred one".