53786422561 has 3 divisors (see below), whose sum is σ = 53786654481. Its totient is φ = 53786190642.

The previous prime is 53786422549. The next prime is 53786422577. The reversal of 53786422561 is 16522468735.

The square root of 53786422561 is 231919.

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

53786422561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16522468735 = 5 ⋅3304493747.

It is not a de Polignac number, because 53786422561 - 2⁷ = 53786422433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53786422541) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 115960 + ... + 347878.

It is an arithmetic number, because the mean of its divisors is an integer number (17928884827).

Almost surely, 2^53786422561 is an apocalyptic number.

53786422561 is the 231919-th square number.

53786422561 is the 115960-th centered octagonal number.

It is an amenable number.

53786422561 is a deficient number, since it is larger than the sum of its proper divisors (231920).

53786422561 is an frugal number, since it uses more digits than its factorization.

53786422561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463838 (or 231919 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

Multiplying 53786422561 by its sum of digits (49), we get a square (2635534705489 = 1623433²).

The spelling of 53786422561 in words is "fifty-three billion, seven hundred eighty-six million, four hundred twenty-two thousand, five hundred sixty-one".