20862051 has 8 divisors (see below), whose sum is σ = 31789824. Its totient is φ = 11921160.

The previous prime is 20862041. The next prime is 20862059. The reversal of 20862051 is 15026802.

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

It is not a de Polignac number, because 20862051 - 2⁹ = 20861539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20862059) 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 7 ways as a sum of consecutive naturals, for example, 496695 + ... + 496736.

It is an arithmetic number, because the mean of its divisors is an integer number (3973728).

Almost surely, 2^20862051 is an apocalyptic number.

20862051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20862051 is a deficient number, since it is larger than the sum of its proper divisors (10927773).

20862051 is an equidigital number, since it uses as much as digits as its factorization.

20862051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993441.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20862051 is about 4567.4994252873. The cubic root of 20862051 is about 275.2869775540.

Adding to 20862051 its reverse (15026802), we get a palindrome (35888853).

The spelling of 20862051 in words is "twenty million, eight hundred sixty-two thousand, fifty-one".