55977077929 has 2 divisors, whose sum is σ = 55977077930. Its totient is φ = 55977077928.

The previous prime is 55977077917. The next prime is 55977077969. The reversal of 55977077929 is 92977077955.

55977077929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48421122304 + 7555955625 = 220048^2 + 86925^2 .

It is a cyclic number.

It is not a de Polignac number, because 55977077929 - 2⁹ = 55977077417 is a prime.

It is not a weakly prime, because it can be changed into another prime (55977077969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27988538964 + 27988538965.

It is an arithmetic number, because the mean of its divisors is an integer number (27988538965).

Almost surely, 2^55977077929 is an apocalyptic number.

It is an amenable number.

55977077929 is a deficient number, since it is larger than the sum of its proper divisors (1).

55977077929 is an equidigital number, since it uses as much as digits as its factorization.

55977077929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87516450, while the sum is 67.

The spelling of 55977077929 in words is "fifty-five billion, nine hundred seventy-seven million, seventy-seven thousand, nine hundred twenty-nine".