55870242997 has 2 divisors, whose sum is σ = 55870242998. Its totient is φ = 55870242996.

The previous prime is 55870242917. The next prime is 55870243007. The reversal of 55870242997 is 79924207855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37610396356 + 18259846641 = 193934^2 + 135129^2 .

It is a cyclic number.

It is not a de Polignac number, because 55870242997 - 2¹¹ = 55870240949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55870242907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27935121498 + 27935121499.

It is an arithmetic number, because the mean of its divisors is an integer number (27935121499).

Almost surely, 2^55870242997 is an apocalyptic number.

It is an amenable number.

55870242997 is a deficient number, since it is larger than the sum of its proper divisors (1).

55870242997 is an equidigital number, since it uses as much as digits as its factorization.

55870242997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 55870242997 in words is "fifty-five billion, eight hundred seventy million, two hundred forty-two thousand, nine hundred ninety-seven".