56700811 has 2 divisors, whose sum is σ = 56700812. Its totient is φ = 56700810.

The previous prime is 56700803. The next prime is 56700817. The reversal of 56700811 is 11800765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56700811 - 2³ = 56700803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56700811.

It is not a weakly prime, because it can be changed into another prime (56700817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28350405 + 28350406.

It is an arithmetic number, because the mean of its divisors is an integer number (28350406).

Almost surely, 2^56700811 is an apocalyptic number.

56700811 is a deficient number, since it is larger than the sum of its proper divisors (1).

56700811 is an equidigital number, since it uses as much as digits as its factorization.

56700811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 56700811 is about 7529.9940903031. The cubic root of 56700811 is about 384.1755811448.

The spelling of 56700811 in words is "fifty-six million, seven hundred thousand, eight hundred eleven".