66041053 has 4 divisors (see below), whose sum is σ = 71121148. Its totient is φ = 60960960.

The previous prime is 66041023. The next prime is 66041057. The reversal of 66041053 is 35014066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7717284 + 58323769 = 2778^2 + 7637^2 .

It is a cyclic number.

It is not a de Polignac number, because 66041053 - 2¹⁷ = 65909981 is a prime.

It is a super-2 number, since 2×66041053² = 8722841362697618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66041057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2540028 + ... + 2540053.

It is an arithmetic number, because the mean of its divisors is an integer number (17780287).

Almost surely, 2^66041053 is an apocalyptic number.

It is an amenable number.

66041053 is a deficient number, since it is larger than the sum of its proper divisors (5080095).

66041053 is a wasteful number, since it uses less digits than its factorization.

66041053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080094.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66041053 is about 8126.5646493460. The cubic root of 66041053 is about 404.2077751127.

The spelling of 66041053 in words is "sixty-six million, forty-one thousand, fifty-three".