20350007 has 4 divisors (see below), whose sum is σ = 21421080. Its totient is φ = 19278936.

The previous prime is 20349997. The next prime is 20350049. The reversal of 20350007 is 70005302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70005302 = 2 ⋅35002651.

It is a cyclic number.

It is not a de Polignac number, because 20350007 - 2⁸ = 20349751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535508 + ... + 535545.

It is an arithmetic number, because the mean of its divisors is an integer number (5355270).

Almost surely, 2^20350007 is an apocalyptic number.

20350007 is a deficient number, since it is larger than the sum of its proper divisors (1071073).

20350007 is a wasteful number, since it uses less digits than its factorization.

20350007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071072.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 20350007 is about 4511.0982033203. The cubic root of 20350007 is about 273.0160554454.

Adding to 20350007 its reverse (70005302), we get a palindrome (90355309).

The spelling of 20350007 in words is "twenty million, three hundred fifty thousand, seven".