53557067776 has 69 divisors (see below), whose sum is σ = 108070423981. Its totient is φ = 26541555712.

The previous prime is 53557067771. The next prime is 53557067797. The reversal of 53557067776 is 67776075535.

The square root of 53557067776 is 231424.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 943718400 + 52613349376 = 30720^2 + 229376^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53557067776.

It is not an unprimeable number, because it can be changed into a prime (53557067771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 473956296 + ... + 473956408.

Almost surely, 2^53557067776 is an apocalyptic number.

53557067776 is the 231424-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53557067776

53557067776 is an abundant number, since it is smaller than the sum of its proper divisors (54513356205).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53557067776 is an frugal number, since it uses more digits than its factorization.

53557067776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 32413500, while the sum is 58.

The spelling of 53557067776 in words is "fifty-three billion, five hundred fifty-seven million, sixty-seven thousand, seven hundred seventy-six".