68168625 has 32 divisors (see below), whose sum is σ = 129642240. Its totient is φ = 31161600.

The previous prime is 68168587. The next prime is 68168651. The reversal of 68168625 is 52686186.

It is not a de Polignac number, because 68168625 - 2⁸ = 68168369 is a prime.

It is a super-2 number, since 2×68168625² = 9293922868781250, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10360 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (4051320).

Almost surely, 2^68168625 is an apocalyptic number.

It is an amenable number.

68168625 is a deficient number, since it is larger than the sum of its proper divisors (61473615).

68168625 is a wasteful number, since it uses less digits than its factorization.

68168625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25994 (or 25984 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 68168625 is about 8256.4293129657. The cubic root of 68168625 is about 408.5026185033.

The spelling of 68168625 in words is "sixty-eight million, one hundred sixty-eight thousand, six hundred twenty-five".