56637011 has 2 divisors, whose sum is σ = 56637012. Its totient is φ = 56637010.

The previous prime is 56636981. The next prime is 56637023. The reversal of 56637011 is 11073665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56637011 - 2⁶ = 56636947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56637071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28318505 + 28318506.

It is an arithmetic number, because the mean of its divisors is an integer number (28318506).

Almost surely, 2^56637011 is an apocalyptic number.

56637011 is a deficient number, since it is larger than the sum of its proper divisors (1).

56637011 is an equidigital number, since it uses as much as digits as its factorization.

56637011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 56637011 is about 7525.7565068237. The cubic root of 56637011 is about 384.0314350532.

The spelling of 56637011 in words is "fifty-six million, six hundred thirty-seven thousand, eleven".