56285081 has 2 divisors, whose sum is σ = 56285082. Its totient is φ = 56285080.

The previous prime is 56285059. The next prime is 56285101. The reversal of 56285081 is 18058265.

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., 30691600 + 25593481 = 5540^2 + 5059^2 .

It is a cyclic number.

It is not a de Polignac number, because 56285081 - 2⁶ = 56285017 is a prime.

It is a super-2 number, since 2×56285081² = 6336020686353122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56285881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28142540 + 28142541.

It is an arithmetic number, because the mean of its divisors is an integer number (28142541).

Almost surely, 2^56285081 is an apocalyptic number.

It is an amenable number.

56285081 is a deficient number, since it is larger than the sum of its proper divisors (1).

56285081 is an equidigital number, since it uses as much as digits as its factorization.

56285081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 56285081 is about 7502.3383688021. The cubic root of 56285081 is about 383.2343526842.

The spelling of 56285081 in words is "fifty-six million, two hundred eighty-five thousand, eighty-one".