20534711 has 2 divisors, whose sum is σ = 20534712. Its totient is φ = 20534710.

The previous prime is 20534677. The next prime is 20534713. The reversal of 20534711 is 11743502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20534711 - 2²² = 16340407 is a prime.

Together with 20534713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20534713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267355 + 10267356.

It is an arithmetic number, because the mean of its divisors is an integer number (10267356).

Almost surely, 2^20534711 is an apocalyptic number.

20534711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20534711 is an equidigital number, since it uses as much as digits as its factorization.

20534711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20534711 is about 4531.5241365351. The cubic root of 20534711 is about 273.8395663359.

The spelling of 20534711 in words is "twenty million, five hundred thirty-four thousand, seven hundred eleven".