56636773 has 2 divisors, whose sum is σ = 56636774. Its totient is φ = 56636772.

The previous prime is 56636753. The next prime is 56636803. The reversal of 56636773 is 37763665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52446564 + 4190209 = 7242^2 + 2047^2 .

It is a cyclic number.

It is not a de Polignac number, because 56636773 - 2²⁵ = 23082341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56636743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28318386 + 28318387.

It is an arithmetic number, because the mean of its divisors is an integer number (28318387).

Almost surely, 2^56636773 is an apocalyptic number.

It is an amenable number.

56636773 is a deficient number, since it is larger than the sum of its proper divisors (1).

56636773 is an equidigital number, since it uses as much as digits as its factorization.

56636773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 43.

The square root of 56636773 is about 7525.7406944433. The cubic root of 56636773 is about 384.0308971269.

The spelling of 56636773 in words is "fifty-six million, six hundred thirty-six thousand, seven hundred seventy-three".