56552389 has 4 divisors (see below), whose sum is σ = 57081024. Its totient is φ = 56023756.

The previous prime is 56552381. The next prime is 56552399. The reversal of 56552389 is 98325565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56552389 - 2³ = 56552381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56552381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264157 + ... + 264370.

It is an arithmetic number, because the mean of its divisors is an integer number (14270256).

Almost surely, 2^56552389 is an apocalyptic number.

It is an amenable number.

56552389 is a deficient number, since it is larger than the sum of its proper divisors (528635).

56552389 is a wasteful number, since it uses less digits than its factorization.

56552389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528634.

The product of its digits is 324000, while the sum is 43.

The square root of 56552389 is about 7520.1322461776. The cubic root of 56552389 is about 383.8400778121.

The spelling of 56552389 in words is "fifty-six million, five hundred fifty-two thousand, three hundred eighty-nine".