56105761 has 4 divisors (see below), whose sum is σ = 56125872. Its totient is φ = 56085652.

The previous prime is 56105737. The next prime is 56105773. The reversal of 56105761 is 16750165.

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 56105761 - 2⁹ = 56105249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56106761) by changing a digit.

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, 5035 + ... + 11728.

It is an arithmetic number, because the mean of its divisors is an integer number (14031468).

Almost surely, 2^56105761 is an apocalyptic number.

It is an amenable number.

56105761 is a deficient number, since it is larger than the sum of its proper divisors (20111).

56105761 is a wasteful number, since it uses less digits than its factorization.

56105761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 56105761 is about 7490.3778943388. The cubic root of 56105761 is about 382.8269345139.

The spelling of 56105761 in words is "fifty-six million, one hundred five thousand, seven hundred sixty-one".