20300552551 has 2 divisors, whose sum is σ = 20300552552. Its totient is φ = 20300552550.

The previous prime is 20300552549. The next prime is 20300552561. The reversal of 20300552551 is 15525500302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20300552551 - 2¹ = 20300552549 is a prime.

It is a super-2 number, since 2×20300552551² (a number of 21 digits) contains 22 as substring.

Together with 20300552549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300552561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150276275 + 10150276276.

It is an arithmetic number, because the mean of its divisors is an integer number (10150276276).

Almost surely, 2^20300552551 is an apocalyptic number.

20300552551 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300552551 is an equidigital number, since it uses as much as digits as its factorization.

20300552551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 20300552551 in words is "twenty billion, three hundred million, five hundred fifty-two thousand, five hundred fifty-one".