42206554 has 16 divisors (see below), whose sum is σ = 68396328. Its totient is φ = 19418112.

The previous prime is 42206551. The next prime is 42206561. The reversal of 42206554 is 45560224.

It can be written as a sum of positive squares in 4 ways, for example, as 14402025 + 27804529 = 3795^2 + 5273^2 .

It is not an unprimeable number, because it can be changed into a prime (42206551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354 + ... + 11170.

Almost surely, 2^42206554 is an apocalyptic number.

42206554 is a deficient number, since it is larger than the sum of its proper divisors (26189774).

42206554 is a wasteful number, since it uses less digits than its factorization.

42206554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 42206554 is about 6496.6571404069. The cubic root of 42206554 is about 348.1715640156.

Adding to 42206554 its reverse (45560224), we get a palindrome (87766778).

The spelling of 42206554 in words is "forty-two million, two hundred six thousand, five hundred fifty-four".