20134550 has 12 divisors (see below), whose sum is σ = 37450356. Its totient is φ = 8053800.

The previous prime is 20134529. The next prime is 20134553. The reversal of 20134550 is 5543102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134553) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 201296 + ... + 201395.

It is an arithmetic number, because the mean of its divisors is an integer number (3120863).

Almost surely, 2^20134550 is an apocalyptic number.

20134550 is a deficient number, since it is larger than the sum of its proper divisors (17315806).

20134550 is a wasteful number, since it uses less digits than its factorization.

20134550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402703 (or 402698 counting only the distinct ones).

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

The square root of 20134550 is about 4487.1538863739. The cubic root of 20134550 is about 272.0491098610.

Adding to 20134550 its reverse (5543102), we get a palindrome (25677652).

The spelling of 20134550 in words is "twenty million, one hundred thirty-four thousand, five hundred fifty".