56481847 has 2 divisors, whose sum is σ = 56481848. Its totient is φ = 56481846.

The previous prime is 56481823. The next prime is 56481857. The reversal of 56481847 is 74818465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56481847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56481857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28240923 + 28240924.

It is an arithmetic number, because the mean of its divisors is an integer number (28240924).

Almost surely, 2^56481847 is an apocalyptic number.

56481847 is a deficient number, since it is larger than the sum of its proper divisors (1).

56481847 is an equidigital number, since it uses as much as digits as its factorization.

56481847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 43.

The square root of 56481847 is about 7515.4405725812. The cubic root of 56481847 is about 383.6804139831.

The spelling of 56481847 in words is "fifty-six million, four hundred eighty-one thousand, eight hundred forty-seven".