53726561281 has 8 divisors (see below), whose sum is σ = 56090592000. Its totient is φ = 51364871712.

The previous prime is 53726561279. The next prime is 53726561299. The reversal of 53726561281 is 18216562735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53726561281 - 2¹ = 53726561279 is a prime.

It is a super-2 number, since 2×53726561281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53726561981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538300 + ... + 630253.

It is an arithmetic number, because the mean of its divisors is an integer number (7011324000).

Almost surely, 2^53726561281 is an apocalyptic number.

It is an amenable number.

53726561281 is a deficient number, since it is larger than the sum of its proper divisors (2364030719).

53726561281 is a wasteful number, since it uses less digits than its factorization.

53726561281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170575.

The product of its digits is 604800, while the sum is 46.

The spelling of 53726561281 in words is "fifty-three billion, seven hundred twenty-six million, five hundred sixty-one thousand, two hundred eighty-one".