68557883 has 4 divisors (see below), whose sum is σ = 68580840. Its totient is φ = 68534928.

The previous prime is 68557861. The next prime is 68557897. The reversal of 68557883 is 38875586.

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

It is a cyclic number.

It is not a de Polignac number, because 68557883 - 2²⁰ = 67509307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68557843) 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, 6185 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (17145210).

Almost surely, 2^68557883 is an apocalyptic number.

68557883 is a deficient number, since it is larger than the sum of its proper divisors (22957).

68557883 is a wasteful number, since it uses less digits than its factorization.

68557883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22956.

The product of its digits is 1612800, while the sum is 50.

The square root of 68557883 is about 8279.9687801344. The cubic root of 68557883 is about 409.2786901073.

The spelling of 68557883 in words is "sixty-eight million, five hundred fifty-seven thousand, eight hundred eighty-three".