68539425 has 24 divisors (see below), whose sum is σ = 118248384. Its totient is φ = 34964160.

The previous prime is 68539411. The next prime is 68539433. The reversal of 68539425 is 52493586.

It is not a de Polignac number, because 68539425 - 2⁴ = 68539409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18142 + ... + 21591.

It is an arithmetic number, because the mean of its divisors is an integer number (4927016).

Almost surely, 2^68539425 is an apocalyptic number.

It is an amenable number.

68539425 is a deficient number, since it is larger than the sum of its proper divisors (49708959).

68539425 is a wasteful number, since it uses less digits than its factorization.

68539425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39769 (or 39764 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 68539425 is about 8278.8540873722. The cubic root of 68539425 is about 409.2419564558.

The spelling of 68539425 in words is "sixty-eight million, five hundred thirty-nine thousand, four hundred twenty-five".