56142223 has 2 divisors, whose sum is σ = 56142224. Its totient is φ = 56142222.

The previous prime is 56142199. The next prime is 56142263. The reversal of 56142223 is 32224165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56142223 - 2⁹ = 56141711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56142263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28071111 + 28071112.

It is an arithmetic number, because the mean of its divisors is an integer number (28071112).

Almost surely, 2^56142223 is an apocalyptic number.

56142223 is a deficient number, since it is larger than the sum of its proper divisors (1).

56142223 is an equidigital number, since it uses as much as digits as its factorization.

56142223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 56142223 is about 7492.8114216227. The cubic root of 56142223 is about 382.9098470510.

Adding to 56142223 its reverse (32224165), we get a palindrome (88366388).

It can be divided in two parts, 56142 and 223, that added together give a palindrome (56365).

The spelling of 56142223 in words is "fifty-six million, one hundred forty-two thousand, two hundred twenty-three".