56394388 has 12 divisors (see below), whose sum is σ = 99115380. Its totient is φ = 28075712.

The previous prime is 56394347. The next prime is 56394391. The reversal of 56394388 is 88349365.

It can be written as a sum of positive squares in 2 ways, for example, as 36216324 + 20178064 = 6018^2 + 4492^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29323 + ... + 31186.

It is an arithmetic number, because the mean of its divisors is an integer number (8259615).

Almost surely, 2^56394388 is an apocalyptic number.

It is an amenable number.

56394388 is a deficient number, since it is larger than the sum of its proper divisors (42720992).

56394388 is a wasteful number, since it uses less digits than its factorization.

56394388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60746 (or 60744 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 56394388 is about 7509.6196974281. The cubic root of 56394388 is about 383.4822757490.

The spelling of 56394388 in words is "fifty-six million, three hundred ninety-four thousand, three hundred eighty-eight".