55565011077511 has 32 divisors (see below), whose sum is σ = 63659041689600. Its totient is φ = 48045754713600.

The previous prime is 55565011077469. The next prime is 55565011077551. The reversal of 55565011077511 is 11577011056555.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55565011077511 - 2⁷ = 55565011077383 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 (55565011077551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39428086 + ... + 40813036.

It is an arithmetic number, because the mean of its divisors is an integer number (1989345052800).

Almost surely, 2^{55565011077511} is an apocalyptic number.

55565011077511 is a deficient number, since it is larger than the sum of its proper divisors (8094030612089).

55565011077511 is a wasteful number, since it uses less digits than its factorization.

55565011077511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385839.

The product of its (nonzero) digits is 918750, while the sum is 49.

The spelling of 55565011077511 in words is "fifty-five trillion, five hundred sixty-five billion, eleven million, seventy-seven thousand, five hundred eleven".