20212375 has 16 divisors (see below), whose sum is σ = 25500384. Its totient is φ = 15993600.

The previous prime is 20212373. The next prime is 20212393. The reversal of 20212375 is 57321202.

It is not a de Polignac number, because 20212375 - 2¹ = 20212373 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 (20212373) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11292 + ... + 12958.

It is an arithmetic number, because the mean of its divisors is an integer number (1593774).

Almost surely, 2^20212375 is an apocalyptic number.

20212375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20212375 is a deficient number, since it is larger than the sum of its proper divisors (5288009).

20212375 is an equidigital number, since it uses as much as digits as its factorization.

20212375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20212375 is about 4495.8175007444. The cubic root of 20212375 is about 272.3991715176.

Adding to 20212375 its reverse (57321202), we get a palindrome (77533577).

The spelling of 20212375 in words is "twenty million, two hundred twelve thousand, three hundred seventy-five".