55224720049 has 2 divisors, whose sum is σ = 55224720050. Its totient is φ = 55224720048.

The previous prime is 55224720007. The next prime is 55224720071. The reversal of 55224720049 is 94002742255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43214094400 + 12010625649 = 207880^2 + 109593^2 .

It is a cyclic number.

It is not a de Polignac number, because 55224720049 - 2³⁵ = 20864981681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55224719993 and 55224720020.

It is not a weakly prime, because it can be changed into another prime (55221720049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27612360024 + 27612360025.

It is an arithmetic number, because the mean of its divisors is an integer number (27612360025).

Almost surely, 2^55224720049 is an apocalyptic number.

It is an amenable number.

55224720049 is a deficient number, since it is larger than the sum of its proper divisors (1).

55224720049 is an equidigital number, since it uses as much as digits as its factorization.

55224720049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 55224720049 in words is "fifty-five billion, two hundred twenty-four million, seven hundred twenty thousand, forty-nine".