20925083 has 4 divisors (see below), whose sum is σ = 20934600. Its totient is φ = 20915568.

The previous prime is 20925053. The next prime is 20925119. The reversal of 20925083 is 38052902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20925083 - 2⁶ = 20925019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20925043) 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, 416 + ... + 6482.

It is an arithmetic number, because the mean of its divisors is an integer number (5233650).

Almost surely, 2^20925083 is an apocalyptic number.

20925083 is a deficient number, since it is larger than the sum of its proper divisors (9517).

20925083 is an equidigital number, since it uses as much as digits as its factorization.

20925083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20925083 is about 4574.3942768415. The cubic root of 20925083 is about 275.5639468470.

Adding to 20925083 its reverse (38052902), we get a palindrome (58977985).

The spelling of 20925083 in words is "twenty million, nine hundred twenty-five thousand, eighty-three".