53864210557 has 2 divisors, whose sum is σ = 53864210558. Its totient is φ = 53864210556.

The previous prime is 53864210489. The next prime is 53864210567. The reversal of 53864210557 is 75501246835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35935268356 + 17928942201 = 189566^2 + 133899^2 .

It is a cyclic number.

It is not a de Polignac number, because 53864210557 - 2⁷ = 53864210429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53864210567) 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, 26932105278 + 26932105279.

It is an arithmetic number, because the mean of its divisors is an integer number (26932105279).

Almost surely, 2^53864210557 is an apocalyptic number.

It is an amenable number.

53864210557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53864210557 is an equidigital number, since it uses as much as digits as its factorization.

53864210557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 53864210557 in words is "fifty-three billion, eight hundred sixty-four million, two hundred ten thousand, five hundred fifty-seven".