68249625 has 64 divisors (see below), whose sum is σ = 122024448. Its totient is φ = 33792000.

The previous prime is 68249609. The next prime is 68249633. The reversal of 68249625 is 52694286.

It is not a de Polignac number, because 68249625 - 2⁴ = 68249609 is a prime.

It is a super-2 number, since 2×68249625² = 9316022625281250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 353529 + ... + 353721.

It is an arithmetic number, because the mean of its divisors is an integer number (1906632).

Almost surely, 2^68249625 is an apocalyptic number.

It is an amenable number.

68249625 is a deficient number, since it is larger than the sum of its proper divisors (53774823).

68249625 is a wasteful number, since it uses less digits than its factorization.

68249625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 265 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 68249625 is about 8261.3331248655. Note that the first 3 decimals coincide. The cubic root of 68249625 is about 408.6643528059.

The spelling of 68249625 in words is "sixty-eight million, two hundred forty-nine thousand, six hundred twenty-five".