53557199473 has 2 divisors, whose sum is σ = 53557199474. Its totient is φ = 53557199472.

The previous prime is 53557199471. The next prime is 53557199489. The reversal of 53557199473 is 37499175535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27872970304 + 25684229169 = 166952^2 + 160263^2 .

It is a cyclic number.

It is not a de Polignac number, because 53557199473 - 2¹ = 53557199471 is a prime.

It is a super-2 number, since 2×53557199473² (a number of 22 digits) contains 22 as substring.

Together with 53557199471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53557199471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26778599736 + 26778599737.

It is an arithmetic number, because the mean of its divisors is an integer number (26778599737).

Almost surely, 2^53557199473 is an apocalyptic number.

It is an amenable number.

53557199473 is a deficient number, since it is larger than the sum of its proper divisors (1).

53557199473 is an equidigital number, since it uses as much as digits as its factorization.

53557199473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17860500, while the sum is 58.

The spelling of 53557199473 in words is "fifty-three billion, five hundred fifty-seven million, one hundred ninety-nine thousand, four hundred seventy-three".