68025641 has 2 divisors, whose sum is σ = 68025642. Its totient is φ = 68025640.

The previous prime is 68025631. The next prime is 68025649. The reversal of 68025641 is 14652086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 32444416 = 5965^2 + 5696^2 .

It is a cyclic number.

It is not a de Polignac number, because 68025641 - 2⁶ = 68025577 is a prime.

68025641 is a modest number, since divided by 25641 gives 68 as remainder.

It is equal to p_4008758 and since 68025641 and 4008758 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 68025598 and 68025607.

It is not a weakly prime, because it can be changed into another prime (68025649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34012820 + 34012821.

It is an arithmetic number, because the mean of its divisors is an integer number (34012821).

Almost surely, 2^68025641 is an apocalyptic number.

It is an amenable number.

68025641 is a deficient number, since it is larger than the sum of its proper divisors (1).

68025641 is an equidigital number, since it uses as much as digits as its factorization.

68025641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 68025641 is about 8247.7658186930. The cubic root of 68025641 is about 408.2168065479.

The spelling of 68025641 in words is "sixty-eight million, twenty-five thousand, six hundred forty-one".