68530507 has 4 divisors (see below), whose sum is σ = 68608656. Its totient is φ = 68452360.

The previous prime is 68530471. The next prime is 68530523. The reversal of 68530507 is 70503586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68530507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68530577) 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, 37744 + ... + 39517.

It is an arithmetic number, because the mean of its divisors is an integer number (17152164).

Almost surely, 2^68530507 is an apocalyptic number.

68530507 is a deficient number, since it is larger than the sum of its proper divisors (78149).

68530507 is an equidigital number, since it uses as much as digits as its factorization.

68530507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78148.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 68530507 is about 8278.3154687412. The cubic root of 68530507 is about 409.2242061947.

The spelling of 68530507 in words is "sixty-eight million, five hundred thirty thousand, five hundred seven".