68020558 has 8 divisors (see below), whose sum is σ = 104519520. Its totient is φ = 33180720.

The previous prime is 68020543. The next prime is 68020567. The reversal of 68020558 is 85502086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×68020558³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414678 + ... + 414841.

It is an arithmetic number, because the mean of its divisors is an integer number (13064940).

Almost surely, 2^68020558 is an apocalyptic number.

68020558 is a deficient number, since it is larger than the sum of its proper divisors (36498962).

68020558 is a wasteful number, since it uses less digits than its factorization.

68020558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829562.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 68020558 is about 8247.4576688820. The cubic root of 68020558 is about 408.2066387265.

The spelling of 68020558 in words is "sixty-eight million, twenty thousand, five hundred fifty-eight".