56305438 has 16 divisors (see below), whose sum is σ = 96624000. Its totient is φ = 24105816.

The previous prime is 56305427. The next prime is 56305439. The reversal of 56305438 is 83450365.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56305439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19645 + ... + 22327.

It is an arithmetic number, because the mean of its divisors is an integer number (6039000).

Almost surely, 2^56305438 is an apocalyptic number.

56305438 is a deficient number, since it is larger than the sum of its proper divisors (40318562).

56305438 is a wasteful number, since it uses less digits than its factorization.

56305438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 56305438 is about 7503.6949564864. The cubic root of 56305438 is about 383.2805494219.

The spelling of 56305438 in words is "fifty-six million, three hundred five thousand, four hundred thirty-eight".