68206554 has 24 divisors (see below), whose sum is σ = 159149172. Its totient is φ = 20986560.

The previous prime is 68206553. The next prime is 68206559. The reversal of 68206554 is 45560286.

It can be written as a sum of positive squares in 2 ways, for example, as 66830625 + 1375929 = 8175^2 + 1173^2 .

It is not an unprimeable number, because it can be changed into a prime (68206553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145507 + ... + 145974.

Almost surely, 2^68206554 is an apocalyptic number.

68206554 is an abundant number, since it is smaller than the sum of its proper divisors (90942618).

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

68206554 is a wasteful number, since it uses less digits than its factorization.

68206554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291502 (or 291499 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 68206554 is about 8258.7259307959. The cubic root of 68206554 is about 408.5783680291.

The spelling of 68206554 in words is "sixty-eight million, two hundred six thousand, five hundred fifty-four".