20554234 has 8 divisors (see below), whose sum is σ = 30883968. Its totient is φ = 10259580.

The previous prime is 20554229. The next prime is 20554253. The reversal of 20554234 is 43245502.

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

It is a junction number, because it is equal to n+sod(n) for n = 20554199 and 20554208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7252 + ... + 9679.

It is an arithmetic number, because the mean of its divisors is an integer number (3860496).

Almost surely, 2^20554234 is an apocalyptic number.

20554234 is a deficient number, since it is larger than the sum of its proper divisors (10329734).

20554234 is a wasteful number, since it uses less digits than its factorization.

20554234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17540.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 20554234 is about 4533.6777565239. The cubic root of 20554234 is about 273.9263214971.

Adding to 20554234 its reverse (43245502), we get a palindrome (63799736).

It can be divided in two parts, 205 and 54234, that multiplied together give a triangular number (11117970 = T₄₇₁₅).

The spelling of 20554234 in words is "twenty million, five hundred fifty-four thousand, two hundred thirty-four".