66070425 has 12 divisors (see below), whose sum is σ = 109236560. Its totient is φ = 35237520.

The previous prime is 66070423. The next prime is 66070427. The reversal of 66070425 is 52407066.

It is an interprime number because it is at equal distance from previous prime (66070423) and next prime (66070427).

It is not a de Polignac number, because 66070425 - 2¹ = 66070423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66070392 and 66070401.

It is not an unprimeable number, because it can be changed into a prime (66070423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440395 + ... + 440544.

Almost surely, 2^66070425 is an apocalyptic number.

It is an amenable number.

66070425 is a deficient number, since it is larger than the sum of its proper divisors (43166135).

66070425 is a wasteful number, since it uses less digits than its factorization.

66070425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880952 (or 880947 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66070425 is about 8128.3716081390. The cubic root of 66070425 is about 404.2676905268.

The spelling of 66070425 in words is "sixty-six million, seventy thousand, four hundred twenty-five".