69488561 has 2 divisors, whose sum is σ = 69488562. Its totient is φ = 69488560.

The previous prime is 69488509. The next prime is 69488579. The reversal of 69488561 is 16588496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60155536 + 9333025 = 7756^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 69488561 - 2¹⁴ = 69472177 is a prime.

It is not a weakly prime, because it can be changed into another prime (69488501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34744280 + 34744281.

It is an arithmetic number, because the mean of its divisors is an integer number (34744281).

Almost surely, 2^69488561 is an apocalyptic number.

It is an amenable number.

69488561 is a deficient number, since it is larger than the sum of its proper divisors (1).

69488561 is an equidigital number, since it uses as much as digits as its factorization.

69488561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The square root of 69488561 is about 8335.9799064057. The cubic root of 69488561 is about 411.1223679222.

The spelling of 69488561 in words is "sixty-nine million, four hundred eighty-eight thousand, five hundred sixty-one".