68561508 has 12 divisors (see below), whose sum is σ = 159976880. Its totient is φ = 22853832.

The previous prime is 68561501. The next prime is 68561509. The reversal of 68561508 is 80516586.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68561501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856718 + ... + 2856741.

Almost surely, 2^68561508 is an apocalyptic number.

It is an amenable number.

68561508 is an abundant number, since it is smaller than the sum of its proper divisors (91415372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68561508 is a wasteful number, since it uses less digits than its factorization.

68561508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713466 (or 5713464 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 68561508 is about 8280.1876790324. The cubic root of 68561508 is about 409.2859035209.

The spelling of 68561508 in words is "sixty-eight million, five hundred sixty-one thousand, five hundred eight".