20555354 has 8 divisors (see below), whose sum is σ = 30852468. Its totient is φ = 10271200.

The previous prime is 20555347. The next prime is 20555369. The reversal of 20555354 is 45355502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19404025 + 1151329 = 4405^2 + 1073^2 .

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

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, 3704 + ... + 7404.

Almost surely, 2^20555354 is an apocalyptic number.

20555354 is a deficient number, since it is larger than the sum of its proper divisors (10297114).

20555354 is a wasteful number, since it uses less digits than its factorization.

20555354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 20555354 is about 4533.8012748686. The cubic root of 20555354 is about 273.9312968209.

The spelling of 20555354 in words is "twenty million, five hundred fifty-five thousand, three hundred fifty-four".