56982481 has 2 divisors, whose sum is σ = 56982482. Its totient is φ = 56982480.

The previous prime is 56982467. The next prime is 56982491. The reversal of 56982481 is 18428965.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 5716881 = 7160^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 56982481 - 2¹⁵ = 56949713 is a prime.

It is a super-2 number, since 2×56982481² = 6494006281830722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56982461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28491240 + 28491241.

It is an arithmetic number, because the mean of its divisors is an integer number (28491241).

Almost surely, 2^56982481 is an apocalyptic number.

It is an amenable number.

56982481 is a deficient number, since it is larger than the sum of its proper divisors (1).

56982481 is an equidigital number, since it uses as much as digits as its factorization.

56982481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 56982481 is about 7548.6741219899. The cubic root of 56982481 is about 384.8106810810.

The spelling of 56982481 in words is "fifty-six million, nine hundred eighty-two thousand, four hundred eighty-one".