55776539 has 8 divisors (see below), whose sum is σ = 68648160. Its totient is φ = 44130816.

The previous prime is 55776529. The next prime is 55776551. The reversal of 55776539 is 93567755.

55776539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55776539 - 2⁸ = 55776283 is a prime.

It is a super-2 number, since 2×55776539² = 6222044605637042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55776493 and 55776502.

It is not an unprimeable number, because it can be changed into a prime (55776529) 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 7 ways as a sum of consecutive naturals, for example, 306374 + ... + 306555.

It is an arithmetic number, because the mean of its divisors is an integer number (8581020).

Almost surely, 2^55776539 is an apocalyptic number.

55776539 is a deficient number, since it is larger than the sum of its proper divisors (12871621).

55776539 is a wasteful number, since it uses less digits than its factorization.

55776539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612949.

The product of its digits is 992250, while the sum is 47.

The square root of 55776539 is about 7468.3692329718. The cubic root of 55776539 is about 382.0766706480.

The spelling of 55776539 in words is "fifty-five million, seven hundred seventy-six thousand, five hundred thirty-nine".