55567901369 has 2 divisors, whose sum is σ = 55567901370. Its totient is φ = 55567901368.

The previous prime is 55567901329. The next prime is 55567901381. The reversal of 55567901369 is 96310976555.

It is a happy number.

55567901369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37775809600 + 17792091769 = 194360^2 + 133387^2 .

It is a cyclic number.

It is not a de Polignac number, because 55567901369 - 2⁸ = 55567901113 is a prime.

It is a super-2 number, since 2×55567901369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55567901329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783950684 + 27783950685.

It is an arithmetic number, because the mean of its divisors is an integer number (27783950685).

Almost surely, 2^55567901369 is an apocalyptic number.

It is an amenable number.

55567901369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55567901369 is an equidigital number, since it uses as much as digits as its factorization.

55567901369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7654500, while the sum is 56.

The spelling of 55567901369 in words is "fifty-five billion, five hundred sixty-seven million, nine hundred one thousand, three hundred sixty-nine".