7066557 has 12 divisors (see below), whose sum is σ = 10360480. Its totient is φ = 4640328.

The previous prime is 7066541. The next prime is 7066561. The reversal of 7066557 is 7556607.

It is not a de Polignac number, because 7066557 - 2⁴ = 7066541 is a prime.

It is a Duffinian number.

7066557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7066567) 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, 5257 + ... + 6462.

Almost surely, 2^7066557 is an apocalyptic number.

It is an amenable number.

7066557 is a deficient number, since it is larger than the sum of its proper divisors (3293923).

7066557 is a wasteful number, since it uses less digits than its factorization.

7066557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792 (or 11789 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 7066557 is about 2658.2996445096. The cubic root of 7066557 is about 191.8974875942.

The spelling of 7066557 in words is "seven million, sixty-six thousand, five hundred fifty-seven".