68366025 has 180 divisors, whose sum is σ = 161638092. Its totient is φ = 28304640.

The previous prime is 68366003. The next prime is 68366041. The reversal of 68366025 is 52066386.

It can be written as a sum of positive squares in 6 ways, for example, as 3337929 + 65028096 = 1827^2 + 8064^2 .

It is not a de Polignac number, because 68366025 - 2⁶ = 68365961 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 1289899 + ... + 1289951.

Almost surely, 2^68366025 is an apocalyptic number.

68366025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68366025 is an abundant number, since it is smaller than the sum of its proper divisors (93272067).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68366025 is a wasteful number, since it uses less digits than its factorization.

68366025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 68366025 is about 8268.3749914962. The cubic root of 68366025 is about 408.8965470658.

The spelling of 68366025 in words is "sixty-eight million, three hundred sixty-six thousand, twenty-five".