56398605 has 16 divisors (see below), whose sum is σ = 95546304. Its totient is φ = 28309760.

The previous prime is 56398603. The next prime is 56398607. The reversal of 56398605 is 50689365.

56398605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56398603) and next prime (56398607).

It is not a de Polignac number, because 56398605 - 2¹ = 56398603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56398603) 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, 110331 + ... + 110840.

It is an arithmetic number, because the mean of its divisors is an integer number (5971644).

Almost surely, 2^56398605 is an apocalyptic number.

It is an amenable number.

56398605 is a deficient number, since it is larger than the sum of its proper divisors (39147699).

56398605 is a wasteful number, since it uses less digits than its factorization.

56398605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221196.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 56398605 is about 7509.9004653857. The cubic root of 56398605 is about 383.4918340550.

The spelling of 56398605 in words is "fifty-six million, three hundred ninety-eight thousand, six hundred five".