68166925 has 12 divisors (see below), whose sum is σ = 84962196. Its totient is φ = 54252800.

The previous prime is 68166899. The next prime is 68166929. The reversal of 68166925 is 52966186.

It can be written as a sum of positive squares in 6 ways, for example, as 499849 + 67667076 = 707^2 + 8226^2 .

It is not a de Polignac number, because 68166925 - 2²³ = 59778317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68166929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1996 + ... + 11845.

It is an arithmetic number, because the mean of its divisors is an integer number (7080183).

Almost surely, 2^68166925 is an apocalyptic number.

It is an amenable number.

68166925 is a deficient number, since it is larger than the sum of its proper divisors (16795271).

68166925 is a wasteful number, since it uses less digits than its factorization.

68166925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14048 (or 14043 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 68166925 is about 8256.3263622509. The cubic root of 68166925 is about 408.4992227073.

The spelling of 68166925 in words is "sixty-eight million, one hundred sixty-six thousand, nine hundred twenty-five".