56667047 has 2 divisors, whose sum is σ = 56667048. Its totient is φ = 56667046.

The previous prime is 56667011. The next prime is 56667097. The reversal of 56667047 is 74076665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56667047 - 2⁶ = 56666983 is a prime.

It is a super-2 number, since 2×56667047² = 6422308431400418, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56666995 and 56667013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56667097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28333523 + 28333524.

It is an arithmetic number, because the mean of its divisors is an integer number (28333524).

Almost surely, 2^56667047 is an apocalyptic number.

56667047 is a deficient number, since it is larger than the sum of its proper divisors (1).

56667047 is an equidigital number, since it uses as much as digits as its factorization.

56667047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 56667047 is about 7527.7517892130. The cubic root of 56667047 is about 384.0993101612.

The spelling of 56667047 in words is "fifty-six million, six hundred sixty-seven thousand, forty-seven".