20000575 has 36 divisors (see below), whose sum is σ = 29897640. Its totient is φ = 13218240.

The previous prime is 20000573. The next prime is 20000599. The reversal of 20000575 is 57500002.

It is a happy number.

It is not a de Polignac number, because 20000575 - 2¹ = 20000573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000573) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35244 + ... + 35806.

It is an arithmetic number, because the mean of its divisors is an integer number (830490).

Almost surely, 2^20000575 is an apocalyptic number.

20000575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20000575 is a deficient number, since it is larger than the sum of its proper divisors (9897065).

20000575 is a wasteful number, since it uses less digits than its factorization.

20000575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 20000575 is about 4472.2002414919. The cubic root of 20000575 is about 271.4443629514. Note that the first 3 decimals are identical.

Adding to 20000575 its reverse (57500002), we get a palindrome (77500577).

The spelling of 20000575 in words is "twenty million, five hundred seventy-five", and thus it is an aban number.