56770223 has 2 divisors, whose sum is σ = 56770224. Its totient is φ = 56770222.

The previous prime is 56770193. The next prime is 56770229. The reversal of 56770223 is 32207765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56770223 - 2⁶ = 56770159 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 56770223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56770229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28385111 + 28385112.

It is an arithmetic number, because the mean of its divisors is an integer number (28385112).

Almost surely, 2^56770223 is an apocalyptic number.

56770223 is a deficient number, since it is larger than the sum of its proper divisors (1).

56770223 is an equidigital number, since it uses as much as digits as its factorization.

56770223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 56770223 is about 7534.6017147557. The cubic root of 56770223 is about 384.3322839084.

Adding to 56770223 its reverse (32207765), we get a palindrome (88977988).

The spelling of 56770223 in words is "fifty-six million, seven hundred seventy thousand, two hundred twenty-three".