55077756859 has 2 divisors, whose sum is σ = 55077756860. Its totient is φ = 55077756858.

The previous prime is 55077756821. The next prime is 55077756931. The reversal of 55077756859 is 95865777055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55077756859 - 2⁹ = 55077756347 is a prime.

It is a super-3 number, since 3×55077756859³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55077756859.

It is not a weakly prime, because it can be changed into another prime (55077756059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538878429 + 27538878430.

It is an arithmetic number, because the mean of its divisors is an integer number (27538878430).

Almost surely, 2^55077756859 is an apocalyptic number.

55077756859 is a deficient number, since it is larger than the sum of its proper divisors (1).

55077756859 is an equidigital number, since it uses as much as digits as its factorization.

55077756859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92610000, while the sum is 64.

The spelling of 55077756859 in words is "fifty-five billion, seventy-seven million, seven hundred fifty-six thousand, eight hundred fifty-nine".