68430554 has 4 divisors (see below), whose sum is σ = 102645834. Its totient is φ = 34215276.

The previous prime is 68430503. The next prime is 68430569. The reversal of 68430554 is 45503486.

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

It can be written as a sum of positive squares in only one way, i.e., 62837329 + 5593225 = 7927^2 + 2365^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17107637 + ... + 17107640.

Almost surely, 2^68430554 is an apocalyptic number.

68430554 is a deficient number, since it is larger than the sum of its proper divisors (34215280).

68430554 is a wasteful number, since it uses less digits than its factorization.

68430554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34215279.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 68430554 is about 8272.2762284634. The cubic root of 68430554 is about 409.0251557231.

The spelling of 68430554 in words is "sixty-eight million, four hundred thirty thousand, five hundred fifty-four".