56013647 has 2 divisors, whose sum is σ = 56013648. Its totient is φ = 56013646.

The previous prime is 56013631. The next prime is 56013673. The reversal of 56013647 is 74631065.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56013647 - 2⁴ = 56013631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56012647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28006823 + 28006824.

It is an arithmetic number, because the mean of its divisors is an integer number (28006824).

Almost surely, 2^56013647 is an apocalyptic number.

56013647 is a deficient number, since it is larger than the sum of its proper divisors (1).

56013647 is an equidigital number, since it uses as much as digits as its factorization.

56013647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 56013647 is about 7484.2265465444. The cubic root of 56013647 is about 382.6173123301.

The spelling of 56013647 in words is "fifty-six million, thirteen thousand, six hundred forty-seven".