20050156 has 24 divisors (see below), whose sum is σ = 40364576. Its totient is φ = 8536320.

The previous prime is 20050139. The next prime is 20050171. The reversal of 20050156 is 65105002.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 2116 + ... + 6676.

Almost surely, 2^20050156 is an apocalyptic number.

It is an amenable number.

20050156 is an abundant number, since it is smaller than the sum of its proper divisors (20314420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20050156 is a wasteful number, since it uses less digits than its factorization.

20050156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729 (or 4727 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 20050156 is about 4477.7400549831. The cubic root of 20050156 is about 271.6684794606.

Adding to 20050156 its reverse (65105002), we get a palindrome (85155158).

The spelling of 20050156 in words is "twenty million, fifty thousand, one hundred fifty-six".