56435909 has 16 divisors (see below), whose sum is σ = 61754880. Its totient is φ = 51392880.

The previous prime is 56435881. The next prime is 56435923. The reversal of 56435909 is 90953465.

56435909 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 56435909 - 2¹⁶ = 56370373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56435999) 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, 54224 + ... + 55254.

It is an arithmetic number, because the mean of its divisors is an integer number (3859680).

Almost surely, 2^56435909 is an apocalyptic number.

It is an amenable number.

56435909 is a deficient number, since it is larger than the sum of its proper divisors (5318971).

56435909 is a wasteful number, since it uses less digits than its factorization.

56435909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 56435909 is about 7512.3837095825. The cubic root of 56435909 is about 383.5763670349.

The spelling of 56435909 in words is "fifty-six million, four hundred thirty-five thousand, nine hundred nine".