20551255251301 has 2 divisors, whose sum is σ = 20551255251302. Its totient is φ = 20551255251300.

The previous prime is 20551255251187. The next prime is 20551255251311. The reversal of 20551255251301 is 10315255215502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19891466200225 + 659789051076 = 4459985^2 + 812274^2 .

It is a cyclic number.

It is not a de Polignac number, because 20551255251301 - 2⁴¹ = 18352231995749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20551255251311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10275627625650 + 10275627625651.

It is an arithmetic number, because the mean of its divisors is an integer number (10275627625651).

Almost surely, 2^{20551255251301} is an apocalyptic number.

It is an amenable number.

20551255251301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20551255251301 is an equidigital number, since it uses as much as digits as its factorization.

20551255251301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 20551255251301 in words is "twenty trillion, five hundred fifty-one billion, two hundred fifty-five million, two hundred fifty-one thousand, three hundred one".