20970050 has 12 divisors (see below), whose sum is σ = 39004386. Its totient is φ = 8388000.

The previous prime is 20970049. The next prime is 20970067. The reversal of 20970050 is 5007902.

It can be written as a sum of positive squares in 3 ways, for example, as 19193161 + 1776889 = 4381^2 + 1333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20969998 and 20970025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209651 + ... + 209750.

Almost surely, 2^20970050 is an apocalyptic number.

20970050 is a deficient number, since it is larger than the sum of its proper divisors (18034336).

20970050 is a wasteful number, since it uses less digits than its factorization.

20970050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419413 (or 419408 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 20970050 is about 4579.3067160871. The cubic root of 20970050 is about 275.7611968569.

Adding to 20970050 its reverse (5007902), we get a palindrome (25977952).

The spelling of 20970050 in words is "twenty million, nine hundred seventy thousand, fifty".