56478727 has 2 divisors, whose sum is σ = 56478728. Its totient is φ = 56478726.

The previous prime is 56478707. The next prime is 56478733. The reversal of 56478727 is 72787465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56478727 - 2¹⁹ = 55954439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56478707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28239363 + 28239364.

It is an arithmetic number, because the mean of its divisors is an integer number (28239364).

Almost surely, 2^56478727 is an apocalyptic number.

56478727 is a deficient number, since it is larger than the sum of its proper divisors (1).

56478727 is an equidigital number, since it uses as much as digits as its factorization.

56478727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 46.

The square root of 56478727 is about 7515.2329970534. The cubic root of 56478727 is about 383.6733491472.

The spelling of 56478727 in words is "fifty-six million, four hundred seventy-eight thousand, seven hundred twenty-seven".