55110561097 has 2 divisors, whose sum is σ = 55110561098. Its totient is φ = 55110561096.

The previous prime is 55110561091. The next prime is 55110561127. The reversal of 55110561097 is 79016501155.

55110561097 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., 46251233721 + 8859327376 = 215061^2 + 94124^2 .

It is a cyclic number.

It is not a de Polignac number, because 55110561097 - 2³¹ = 52963077449 is a prime.

It is not a weakly prime, because it can be changed into another prime (55110561091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27555280548 + 27555280549.

It is an arithmetic number, because the mean of its divisors is an integer number (27555280549).

Almost surely, 2^55110561097 is an apocalyptic number.

It is an amenable number.

55110561097 is a deficient number, since it is larger than the sum of its proper divisors (1).

55110561097 is an equidigital number, since it uses as much as digits as its factorization.

55110561097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 40.

The spelling of 55110561097 in words is "fifty-five billion, one hundred ten million, five hundred sixty-one thousand, ninety-seven".