68525477 has 2 divisors, whose sum is σ = 68525478. Its totient is φ = 68525476.

The previous prime is 68525423. The next prime is 68525489. The reversal of 68525477 is 77452586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53787556 + 14737921 = 7334^2 + 3839^2 .

It is a cyclic number.

It is not a de Polignac number, because 68525477 - 2¹⁰ = 68524453 is a prime.

It is a super-3 number, since 3×68525477³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68525377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34262738 + 34262739.

It is an arithmetic number, because the mean of its divisors is an integer number (34262739).

Almost surely, 2^68525477 is an apocalyptic number.

It is an amenable number.

68525477 is a deficient number, since it is larger than the sum of its proper divisors (1).

68525477 is an equidigital number, since it uses as much as digits as its factorization.

68525477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

The square root of 68525477 is about 8278.0116573970. The cubic root of 68525477 is about 409.2141938746.

It can be divided in two parts, 685 and 25477, that added together give a palindrome (26162).

The spelling of 68525477 in words is "sixty-eight million, five hundred twenty-five thousand, four hundred seventy-seven".