55765711 has 4 divisors (see below), whose sum is σ = 57062632. Its totient is φ = 54468792.

The previous prime is 55765693. The next prime is 55765747. The reversal of 55765711 is 11756755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11756755 = 5 ⋅2351351.

It is a cyclic number.

It is not a de Polignac number, because 55765711 - 2¹¹ = 55763663 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 (55765751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648396 + ... + 648481.

It is an arithmetic number, because the mean of its divisors is an integer number (14265658).

Almost surely, 2^55765711 is an apocalyptic number.

55765711 is a deficient number, since it is larger than the sum of its proper divisors (1296921).

55765711 is a wasteful number, since it uses less digits than its factorization.

55765711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296920.

The product of its digits is 36750, while the sum is 37.

The square root of 55765711 is about 7467.6442737988. The cubic root of 55765711 is about 382.0519446371.

The spelling of 55765711 in words is "fifty-five million, seven hundred sixty-five thousand, seven hundred eleven".