61055055097 has 2 divisors, whose sum is σ = 61055055098. Its totient is φ = 61055055096.

The previous prime is 61055055077. The next prime is 61055055163. The reversal of 61055055097 is 79055055016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50704230976 + 10350824121 = 225176^2 + 101739^2 .

It is a cyclic number.

It is not a de Polignac number, because 61055055097 - 2¹⁹ = 61054530809 is a prime.

It is not a weakly prime, because it can be changed into another prime (61055055067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30527527548 + 30527527549.

It is an arithmetic number, because the mean of its divisors is an integer number (30527527549).

Almost surely, 2^61055055097 is an apocalyptic number.

It is an amenable number.

61055055097 is a deficient number, since it is larger than the sum of its proper divisors (1).

61055055097 is an equidigital number, since it uses as much as digits as its factorization.

61055055097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236250, while the sum is 43.

The spelling of 61055055097 in words is "sixty-one billion, fifty-five million, fifty-five thousand, ninety-seven".