20242555351 has 2 divisors, whose sum is σ = 20242555352. Its totient is φ = 20242555350.

The previous prime is 20242555339. The next prime is 20242555357. The reversal of 20242555351 is 15355524202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242555351 is a prime.

It is a super-2 number, since 2×20242555351² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242555357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121277675 + 10121277676.

It is an arithmetic number, because the mean of its divisors is an integer number (10121277676).

Almost surely, 2^20242555351 is an apocalyptic number.

20242555351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242555351 is an equidigital number, since it uses as much as digits as its factorization.

20242555351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 20242555351 in words is "twenty billion, two hundred forty-two million, five hundred fifty-five thousand, three hundred fifty-one".