56259609 has 16 divisors (see below), whose sum is σ = 87724032. Its totient is φ = 31400208.

The previous prime is 56259571. The next prime is 56259617. The reversal of 56259609 is 90695265.

56259609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56259609 - 2¹¹ = 56257561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56254609) 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, 30249 + ... + 32054.

It is an arithmetic number, because the mean of its divisors is an integer number (5482752).

Almost surely, 2^56259609 is an apocalyptic number.

It is an amenable number.

56259609 is a deficient number, since it is larger than the sum of its proper divisors (31464423).

56259609 is a wasteful number, since it uses less digits than its factorization.

56259609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62356.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 56259609 is about 7500.6405726444. The cubic root of 56259609 is about 383.1765326355.

The spelling of 56259609 in words is "fifty-six million, two hundred fifty-nine thousand, six hundred nine".