66014425 has 6 divisors (see below), whose sum is σ = 81857918. Its totient is φ = 52811520.

The previous prime is 66014419. The next prime is 66014449. The reversal of 66014425 is 52441066.

It can be written as a sum of positive squares in 3 ways, for example, as 8573184 + 57441241 = 2928^2 + 7579^2 .

It is not a de Polignac number, because 66014425 - 2²³ = 57625817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66014393 and 66014402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1320264 + ... + 1320313.

Almost surely, 2^66014425 is an apocalyptic number.

It is an amenable number.

66014425 is a deficient number, since it is larger than the sum of its proper divisors (15843493).

66014425 is a wasteful number, since it uses less digits than its factorization.

66014425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640587 (or 2640582 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 66014425 is about 8124.9261535106. The cubic root of 66014425 is about 404.1534417798.

It can be divided in two parts, 6601 and 4425, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 66014425 in words is "sixty-six million, fourteen thousand, four hundred twenty-five".