56476447 has 2 divisors, whose sum is σ = 56476448. Its totient is φ = 56476446.

The previous prime is 56476421. The next prime is 56476457. The reversal of 56476447 is 74467465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56476447 - 2¹¹ = 56474399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56476457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28238223 + 28238224.

It is an arithmetic number, because the mean of its divisors is an integer number (28238224).

Almost surely, 2^56476447 is an apocalyptic number.

56476447 is a deficient number, since it is larger than the sum of its proper divisors (1).

56476447 is an equidigital number, since it uses as much as digits as its factorization.

56476447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 43.

The square root of 56476447 is about 7515.0813036187. The cubic root of 56476447 is about 383.6681862180.

The spelling of 56476447 in words is "fifty-six million, four hundred seventy-six thousand, four hundred forty-seven".