68111525 has 12 divisors (see below), whose sum is σ = 84723744. Its totient is φ = 54318000.

The previous prime is 68111513. The next prime is 68111539. The reversal of 68111525 is 52511186.

It is not a de Polignac number, because 68111525 - 2¹⁴ = 68095141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4160 + ... + 12390.

It is an arithmetic number, because the mean of its divisors is an integer number (7060312).

Almost surely, 2^68111525 is an apocalyptic number.

It is an amenable number.

68111525 is a deficient number, since it is larger than the sum of its proper divisors (16612219).

68111525 is a wasteful number, since it uses less digits than its factorization.

68111525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572 (or 8567 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

The square root of 68111525 is about 8252.9706772774. The cubic root of 68111525 is about 408.3885287968.

The spelling of 68111525 in words is "sixty-eight million, one hundred eleven thousand, five hundred twenty-five".