53541794881 has 27 divisors (see below), whose sum is σ = 56724104073. Its totient is φ = 50535794400.

The previous prime is 53541794861. The next prime is 53541794897. The reversal of 53541794881 is 18849714535.

The square root of 53541794881 is 231391.

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

It can be written as a sum of positive squares in 4 ways, for example, as 17593634881 + 35948160000 = 132641^2 + 189600^2 .

It is not a de Polignac number, because 53541794881 - 2⁵ = 53541794849 is a prime.

It is a super-2 number, since 2×53541794881² (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 (53541794851) by changing a digit.

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 in 26 ways as a sum of consecutive naturals, for example, 530116731 + ... + 530116831.

Almost surely, 2^53541794881 is an apocalyptic number.

53541794881 is the 231391-st square number.

53541794881 is the 115696-th centered octagonal number.

It is an amenable number.

53541794881 is a deficient number, since it is larger than the sum of its proper divisors (3182309192).

53541794881 is an frugal number, since it uses more digits than its factorization.

53541794881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 209 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 55.

The spelling of 53541794881 in words is "fifty-three billion, five hundred forty-one million, seven hundred ninety-four thousand, eight hundred eighty-one".