69055081 has 2 divisors, whose sum is σ = 69055082. Its totient is φ = 69055080.

The previous prime is 69055069. The next prime is 69055099. The reversal of 69055081 is 18055096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 31539456 = 6125^2 + 5616^2 .

It is a cyclic number.

It is not a de Polignac number, because 69055081 - 2²¹ = 66957929 is a prime.

It is a super-2 number, since 2×69055081² = 9537208423833122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69055031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34527540 + 34527541.

It is an arithmetic number, because the mean of its divisors is an integer number (34527541).

Almost surely, 2^69055081 is an apocalyptic number.

It is an amenable number.

69055081 is a deficient number, since it is larger than the sum of its proper divisors (1).

69055081 is an equidigital number, since it uses as much as digits as its factorization.

69055081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 69055081 is about 8309.9386881011. The cubic root of 69055081 is about 410.2657032430.

The spelling of 69055081 in words is "sixty-nine million, fifty-five thousand, eighty-one".