1066277725 has 6 divisors (see below), whose sum is σ = 1322184410. Its totient is φ = 853022160.

The previous prime is 1066277711. The next prime is 1066277741. The reversal of 1066277725 is 5277726601.

It can be written as a sum of positive squares in 3 ways, for example, as 2669956 + 1063607769 = 1634^2 + 32613^2 .

It is not a de Polignac number, because 1066277725 - 2¹⁵ = 1066244957 is a prime.

It is a super-2 number, since 2×1066277725² = 2273896373662351250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21325530 + ... + 21325579.

Almost surely, 2^1066277725 is an apocalyptic number.

It is an amenable number.

1066277725 is a deficient number, since it is larger than the sum of its proper divisors (255906685).

1066277725 is an equidigital number, since it uses as much as digits as its factorization.

1066277725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42651119 (or 42651114 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 1066277725 is about 32653.9082653210. The cubic root of 1066277725 is about 1021.6217073992.

The spelling of 1066277725 in words is "one billion, sixty-six million, two hundred seventy-seven thousand, seven hundred twenty-five".