56473447 has 2 divisors, whose sum is σ = 56473448. Its totient is φ = 56473446.

The previous prime is 56473427. The next prime is 56473451. The reversal of 56473447 is 74437465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56473447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56473427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28236723 + 28236724.

It is an arithmetic number, because the mean of its divisors is an integer number (28236724).

Almost surely, 2^56473447 is an apocalyptic number.

56473447 is a deficient number, since it is larger than the sum of its proper divisors (1).

56473447 is an equidigital number, since it uses as much as digits as its factorization.

56473447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 40.

The square root of 56473447 is about 7514.8817023291. The cubic root of 56473447 is about 383.6613926784.

The spelling of 56473447 in words is "fifty-six million, four hundred seventy-three thousand, four hundred forty-seven".