68629025 has 6 divisors (see below), whose sum is σ = 85100022. Its totient is φ = 54903200.

The previous prime is 68629021. The next prime is 68629027. The reversal of 68629025 is 52092686.

It can be written as a sum of positive squares in 3 ways, for example, as 6345361 + 62283664 = 2519^2 + 7892^2 .

It is not a de Polignac number, because 68629025 - 2² = 68629021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68629025.

It is not an unprimeable number, because it can be changed into a prime (68629021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1372556 + ... + 1372605.

It is an arithmetic number, because the mean of its divisors is an integer number (14183337).

Almost surely, 2^68629025 is an apocalyptic number.

It is an amenable number.

68629025 is a deficient number, since it is larger than the sum of its proper divisors (16470997).

68629025 is a wasteful number, since it uses less digits than its factorization.

68629025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745171 (or 2745166 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 68629025 is about 8284.2636969136. The cubic root of 68629025 is about 409.4202096410.

The spelling of 68629025 in words is "sixty-eight million, six hundred twenty-nine thousand, twenty-five".