57066667 has 8 divisors (see below), whose sum is σ = 65451776. Its totient is φ = 48739752.

The previous prime is 57066661. The next prime is 57066683. The reversal of 57066667 is 76666075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57066667 - 2⁷ = 57066539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57066661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12423 + ... + 16384.

It is an arithmetic number, because the mean of its divisors is an integer number (8181472).

Almost surely, 2^57066667 is an apocalyptic number.

57066667 is a deficient number, since it is larger than the sum of its proper divisors (8385109).

57066667 is a wasteful number, since it uses less digits than its factorization.

57066667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29097.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 57066667 is about 7554.2482749775. The cubic root of 57066667 is about 385.0000944510. Note that the first 4 decimals are identical.

The spelling of 57066667 in words is "fifty-seven million, sixty-six thousand, six hundred sixty-seven".