53404813256 has 8 divisors (see below), whose sum is σ = 100134024870. Its totient is φ = 26702406624.

The previous prime is 53404813237. The next prime is 53404813289. The reversal of 53404813256 is 65231840435.

It can be written as a sum of positive squares in only one way, i.e., 53145925156 + 258888100 = 230534^2 + 16090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 3337800821 + ... + 3337800836.

Almost surely, 2^53404813256 is an apocalyptic number.

It is an amenable number.

53404813256 is a deficient number, since it is larger than the sum of its proper divisors (46729211614).

53404813256 is a wasteful number, since it uses less digits than its factorization.

53404813256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6675601663 (or 6675601659 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 53404813256 in words is "fifty-three billion, four hundred four million, eight hundred thirteen thousand, two hundred fifty-six".