55567757583409 has 2 divisors, whose sum is σ = 55567757583410. Its totient is φ = 55567757583408.

The previous prime is 55567757583337. The next prime is 55567757583419. The reversal of 55567757583409 is 90438575776555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40800092375025 + 14767665208384 = 6387495^2 + 3842872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55567757583409 is a prime.

It is a super-2 number, since 2×55567757583409² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55567757583419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783878791704 + 27783878791705.

It is an arithmetic number, because the mean of its divisors is an integer number (27783878791705).

Almost surely, 2^{55567757583409} is an apocalyptic number.

It is an amenable number.

55567757583409 is a deficient number, since it is larger than the sum of its proper divisors (1).

55567757583409 is an equidigital number, since it uses as much as digits as its factorization.

55567757583409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5556600000, while the sum is 76.

The spelling of 55567757583409 in words is "fifty-five trillion, five hundred sixty-seven billion, seven hundred fifty-seven million, five hundred eighty-three thousand, four hundred nine".