56512229 has 2 divisors, whose sum is σ = 56512230. Its totient is φ = 56512228.

The previous prime is 56512201. The next prime is 56512243. The reversal of 56512229 is 92221565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42837025 + 13675204 = 6545^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 56512229 - 2²⁴ = 39735013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56512195 and 56512204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56518229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28256114 + 28256115.

It is an arithmetic number, because the mean of its divisors is an integer number (28256115).

Almost surely, 2^56512229 is an apocalyptic number.

It is an amenable number.

56512229 is a deficient number, since it is larger than the sum of its proper divisors (1).

56512229 is an equidigital number, since it uses as much as digits as its factorization.

56512229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 56512229 is about 7517.4616061540. The cubic root of 56512229 is about 383.7491964885.

The spelling of 56512229 in words is "fifty-six million, five hundred twelve thousand, two hundred twenty-nine".