52222121557 has 2 divisors, whose sum is σ = 52222121558. Its totient is φ = 52222121556.

The previous prime is 52222121537. The next prime is 52222121563. The reversal of 52222121557 is 75512122225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42419933521 + 9802188036 = 205961^2 + 99006^2 .

It is a cyclic number.

It is not a de Polignac number, because 52222121557 - 2⁷ = 52222121429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52222121537) 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, 26111060778 + 26111060779.

It is an arithmetic number, because the mean of its divisors is an integer number (26111060779).

Almost surely, 2^52222121557 is an apocalyptic number.

It is an amenable number.

52222121557 is a deficient number, since it is larger than the sum of its proper divisors (1).

52222121557 is an equidigital number, since it uses as much as digits as its factorization.

52222121557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The spelling of 52222121557 in words is "fifty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, five hundred fifty-seven".