55850777757 has 12 divisors (see below), whose sum is σ = 80675751520. Its totient is φ = 37232741448.

The previous prime is 55850777753. The next prime is 55850777789. The reversal of 55850777757 is 75777705855.

It is a happy number.

55850777757 is a `hidden beast` number, since 5 + 5 + 8 + 507 + 7 + 77 + 57 = 666.

It is not a de Polignac number, because 55850777757 - 2² = 55850777753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55850777694 and 55850777703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55850777753) 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 11 ways as a sum of consecutive naturals, for example, 325344 + ... + 466422.

Almost surely, 2^55850777757 is an apocalyptic number.

It is an amenable number.

55850777757 is a deficient number, since it is larger than the sum of its proper divisors (24824973763).

55850777757 is a wasteful number, since it uses less digits than its factorization.

55850777757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185072 (or 185069 counting only the distinct ones).

The product of its (nonzero) digits is 84035000, while the sum is 63.

The spelling of 55850777757 in words is "fifty-five billion, eight hundred fifty million, seven hundred seventy-seven thousand, seven hundred fifty-seven".