68526481 has 2 divisors, whose sum is σ = 68526482. Its totient is φ = 68526480.

The previous prime is 68526467. The next prime is 68526527. The reversal of 68526481 is 18462586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41486481 + 27040000 = 6441^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 68526481 - 2¹⁵ = 68493713 is a prime.

It is a super-2 number, since 2×68526481² = 9391757196486722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68526421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34263240 + 34263241.

It is an arithmetic number, because the mean of its divisors is an integer number (34263241).

Almost surely, 2^68526481 is an apocalyptic number.

It is an amenable number.

68526481 is a deficient number, since it is larger than the sum of its proper divisors (1).

68526481 is an equidigital number, since it uses as much as digits as its factorization.

68526481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 68526481 is about 8278.0722997567. The cubic root of 68526481 is about 409.2161923967.

The spelling of 68526481 in words is "sixty-eight million, five hundred twenty-six thousand, four hundred eighty-one".