56065551 has 8 divisors (see below), whose sum is σ = 75039360. Its totient is φ = 37234392.

The previous prime is 56065549. The next prime is 56065579. The reversal of 56065551 is 15556065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56065551 - 2¹ = 56065549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56065591) 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 7 ways as a sum of consecutive naturals, for example, 34741 + ... + 36318.

It is an arithmetic number, because the mean of its divisors is an integer number (9379920).

Almost surely, 2^56065551 is an apocalyptic number.

56065551 is a deficient number, since it is larger than the sum of its proper divisors (18973809).

56065551 is a wasteful number, since it uses less digits than its factorization.

56065551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71325.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 56065551 is about 7487.6933030140. The cubic root of 56065551 is about 382.7354575744.

It can be divided in two parts, 56065 and 551, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 56065551 in words is "fifty-six million, sixty-five thousand, five hundred fifty-one".