56667011 has 2 divisors, whose sum is σ = 56667012. Its totient is φ = 56667010.

The previous prime is 56666993. The next prime is 56667047. The reversal of 56667011 is 11076665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56667011 - 2¹⁸ = 56404867 is a prime.

It is a super-2 number, since 2×56667011² = 6422300271348242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56667211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28333505 + 28333506.

It is an arithmetic number, because the mean of its divisors is an integer number (28333506).

Almost surely, 2^56667011 is an apocalyptic number.

56667011 is a deficient number, since it is larger than the sum of its proper divisors (1).

56667011 is an equidigital number, since it uses as much as digits as its factorization.

56667011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 56667011 is about 7527.7493980605. The cubic root of 56667011 is about 384.0992288231.

The spelling of 56667011 in words is "fifty-six million, six hundred sixty-seven thousand, eleven".