20514853 has 2 divisors, whose sum is σ = 20514854. Its totient is φ = 20514852.

The previous prime is 20514841. The next prime is 20514863. The reversal of 20514853 is 35841502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19210689 + 1304164 = 4383^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 20514853 - 2⁹ = 20514341 is a prime.

It is a super-2 number, since 2×20514853² = 841718387223218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20514833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257426 + 10257427.

It is an arithmetic number, because the mean of its divisors is an integer number (10257427).

Almost surely, 2^20514853 is an apocalyptic number.

It is an amenable number.

20514853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514853 is an equidigital number, since it uses as much as digits as its factorization.

20514853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 20514853 is about 4529.3325115297. The cubic root of 20514853 is about 273.7512660923.

The spelling of 20514853 in words is "twenty million, five hundred fourteen thousand, eight hundred fifty-three".