20054506 has 16 divisors (see below), whose sum is σ = 30537000. Its totient is φ = 9876928.

The previous prime is 20054491. The next prime is 20054521. The reversal of 20054506 is 60545002.

It is an interprime number because it is at equal distance from previous prime (20054491) and next prime (20054521).

It can be written as a sum of positive squares in 4 ways, for example, as 15280281 + 4774225 = 3909^2 + 2185^2 .

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, 51360 + ... + 51748.

Almost surely, 2^20054506 is an apocalyptic number.

20054506 is a deficient number, since it is larger than the sum of its proper divisors (10482494).

20054506 is a wasteful number, since it uses less digits than its factorization.

20054506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20054506 is about 4478.2257647421. The cubic root of 20054506 is about 271.6881247348.

Adding to 20054506 its reverse (60545002), we get a palindrome (80599508).

The spelling of 20054506 in words is "twenty million, fifty-four thousand, five hundred six".