20941025 has 24 divisors (see below), whose sum is σ = 31426560. Its totient is φ = 13512960.

The previous prime is 20941009. The next prime is 20941069. The reversal of 20941025 is 52014902.

It is not a de Polignac number, because 20941025 - 2⁴ = 20941009 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (1309440).

Almost surely, 2^20941025 is an apocalyptic number.

20941025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20941025 is a deficient number, since it is larger than the sum of its proper divisors (10485535).

20941025 is a wasteful number, since it uses less digits than its factorization.

20941025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7073 (or 7068 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20941025 is about 4576.1364708671. The cubic root of 20941025 is about 275.6339095370.

Adding to 20941025 its reverse (52014902), we get a palindrome (72955927).

The spelling of 20941025 in words is "twenty million, nine hundred forty-one thousand, twenty-five".