20000250021 has 8 divisors (see below), whose sum is σ = 26773244064. Its totient is φ = 13280378000.

The previous prime is 20000250007. The next prime is 20000250043. The reversal of 20000250021 is 12005200002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000250021 - 2¹⁸ = 19999987877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000249979 and 20000250006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000250071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13279626 + ... + 13281131.

It is an arithmetic number, because the mean of its divisors is an integer number (3346655508).

Almost surely, 2^20000250021 is an apocalyptic number.

It is an amenable number.

20000250021 is a deficient number, since it is larger than the sum of its proper divisors (6772994043).

20000250021 is a wasteful number, since it uses less digits than its factorization.

20000250021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26561011.

The product of its (nonzero) digits is 40, while the sum is 12.

Adding to 20000250021 its reverse (12005200002), we get a palindrome (32005450023).

The spelling of 20000250021 in words is "twenty billion, two hundred fifty thousand, twenty-one".