56261577111 has 8 divisors (see below), whose sum is σ = 75016547184. Its totient is φ = 37507162560.

The previous prime is 56261577091. The next prime is 56261577161. The reversal of 56261577111 is 11177516265.

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

It is not a de Polignac number, because 56261577111 - 2⁵ = 56261577079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56261577161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266355 + ... + 428331.

It is an arithmetic number, because the mean of its divisors is an integer number (9377068398).

Almost surely, 2^56261577111 is an apocalyptic number.

56261577111 is a deficient number, since it is larger than the sum of its proper divisors (18754970073).

56261577111 is a wasteful number, since it uses less digits than its factorization.

56261577111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277761.

The product of its digits is 88200, while the sum is 42.

The spelling of 56261577111 in words is "fifty-six billion, two hundred sixty-one million, five hundred seventy-seven thousand, one hundred eleven".