56478229 has 2 divisors, whose sum is σ = 56478230. Its totient is φ = 56478228.

The previous prime is 56478223. The next prime is 56478251. The reversal of 56478229 is 92287465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55800900 + 677329 = 7470^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 56478229 - 2⁷ = 56478101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56478223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28239114 + 28239115.

It is an arithmetic number, because the mean of its divisors is an integer number (28239115).

Almost surely, 2^56478229 is an apocalyptic number.

It is an amenable number.

56478229 is a deficient number, since it is larger than the sum of its proper divisors (1).

56478229 is an equidigital number, since it uses as much as digits as its factorization.

56478229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 56478229 is about 7515.1998642751. The cubic root of 56478229 is about 383.6722214666.

The spelling of 56478229 in words is "fifty-six million, four hundred seventy-eight thousand, two hundred twenty-nine".