56280947 has 2 divisors, whose sum is σ = 56280948. Its totient is φ = 56280946.

The previous prime is 56280941. The next prime is 56280989. The reversal of 56280947 is 74908265.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56280947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56280941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28140473 + 28140474.

It is an arithmetic number, because the mean of its divisors is an integer number (28140474).

Almost surely, 2^56280947 is an apocalyptic number.

56280947 is a deficient number, since it is larger than the sum of its proper divisors (1).

56280947 is an equidigital number, since it uses as much as digits as its factorization.

56280947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 56280947 is about 7502.0628496434. The cubic root of 56280947 is about 383.2249699160.

The spelling of 56280947 in words is "fifty-six million, two hundred eighty thousand, nine hundred forty-seven".