20356451053 has 2 divisors, whose sum is σ = 20356451054. Its totient is φ = 20356451052.

The previous prime is 20356450999. The next prime is 20356451069. The reversal of 20356451053 is 35015465302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20204348164 + 152102889 = 142142^2 + 12333^2 .

It is a cyclic number.

It is not a de Polignac number, because 20356451053 - 2¹³ = 20356442861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20356421053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10178225526 + 10178225527.

It is an arithmetic number, because the mean of its divisors is an integer number (10178225527).

Almost surely, 2^20356451053 is an apocalyptic number.

It is an amenable number.

20356451053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20356451053 is an equidigital number, since it uses as much as digits as its factorization.

20356451053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 20356451053 in words is "twenty billion, three hundred fifty-six million, four hundred fifty-one thousand, fifty-three".