20551034 has 16 divisors (see below), whose sum is σ = 35382336. Its totient is φ = 8769600.

The previous prime is 20551019. The next prime is 20551043. The reversal of 20551034 is 43015502.

It is a junction number, because it is equal to n+sod(n) for n = 20550997 and 20551015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329 + ... + 6419.

It is an arithmetic number, because the mean of its divisors is an integer number (2211396).

Almost surely, 2^20551034 is an apocalyptic number.

20551034 is a deficient number, since it is larger than the sum of its proper divisors (14831302).

20551034 is a wasteful number, since it uses less digits than its factorization.

20551034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20551034 is about 4533.3248284234. The cubic root of 20551034 is about 273.9121052903.

Adding to 20551034 its reverse (43015502), we get a palindrome (63566536).

The spelling of 20551034 in words is "twenty million, five hundred fifty-one thousand, thirty-four".