56645430 has 32 divisors (see below), whose sum is σ = 136167264. Its totient is φ = 15081216.

The previous prime is 56645423. The next prime is 56645437. The reversal of 56645430 is 3454665.

56645430 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 (56645423) and next prime (56645437).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56645391 and 56645400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56645437) 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, 25234 + ... + 27386.

It is an arithmetic number, because the mean of its divisors is an integer number (4255227).

Almost surely, 2^56645430 is an apocalyptic number.

56645430 is an abundant number, since it is smaller than the sum of its proper divisors (79521834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56645430 is a wasteful number, since it uses less digits than its factorization.

56645430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 56645430 is about 7526.3158317998. The cubic root of 56645430 is about 384.0504626608.

It can be divided in two parts, 56645 and 430, that added together give a palindrome (57075).

The spelling of 56645430 in words is "fifty-six million, six hundred forty-five thousand, four hundred thirty".