68790025 has 24 divisors (see below), whose sum is σ = 87684120. Its totient is φ = 53514240.

The previous prime is 68790019. The next prime is 68790037. The reversal of 68790025 is 52009786.

It can be written as a sum of positive squares in 12 ways, for example, as 36675136 + 32114889 = 6056^2 + 5667^2 .

It is not a de Polignac number, because 68790025 - 2¹⁹ = 68265737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255591 + ... + 255859.

It is an arithmetic number, because the mean of its divisors is an integer number (3653505).

Almost surely, 2^68790025 is an apocalyptic number.

It is an amenable number.

68790025 is a deficient number, since it is larger than the sum of its proper divisors (18894095).

68790025 is a wasteful number, since it uses less digits than its factorization.

68790025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 68790025 is about 8293.9752230158. The cubic root of 68790025 is about 409.7401188689.

The spelling of 68790025 in words is "sixty-eight million, seven hundred ninety thousand, twenty-five".