68240575 has 12 divisors (see below), whose sum is σ = 91127848. Its totient is φ = 50392800.

The previous prime is 68240561. The next prime is 68240581. The reversal of 68240575 is 57504286.

It is a happy number.

It is not a de Polignac number, because 68240575 - 2²⁵ = 34686143 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 104661 + ... + 105310.

Almost surely, 2^68240575 is an apocalyptic number.

68240575 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68240575 is a deficient number, since it is larger than the sum of its proper divisors (22887273).

68240575 is a wasteful number, since it uses less digits than its factorization.

68240575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209994 (or 209989 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 68240575 is about 8260.7853742849. The cubic root of 68240575 is about 408.6462888440.

The spelling of 68240575 in words is "sixty-eight million, two hundred forty thousand, five hundred seventy-five".