20050497 has 20 divisors (see below), whose sum is σ = 31716036. Its totient is φ = 12579840.

The previous prime is 20050493. The next prime is 20050507. The reversal of 20050497 is 79405002.

It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 3207681 = 4104^2 + 1791^2 .

It is not a de Polignac number, because 20050497 - 2² = 20050493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20050497.

It is not an unprimeable number, because it can be changed into a prime (20050493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5904 + ... + 8657.

Almost surely, 2^20050497 is an apocalyptic number.

20050497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20050497 is a deficient number, since it is larger than the sum of its proper divisors (11665539).

20050497 is a wasteful number, since it uses less digits than its factorization.

20050497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14590 (or 14581 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 20050497 is about 4477.7781320651. The cubic root of 20050497 is about 271.6700195721.

Adding to 20050497 its reverse (79405002), we get a palindrome (99455499).

It can be divided in two parts, 2005049 and 7, that added together give a square (2005056 = 1416²).

The spelling of 20050497 in words is "twenty million, fifty thousand, four hundred ninety-seven".