54775474733681 has 16 divisors (see below), whose sum is σ = 60103882043856. Its totient is φ = 49606400802816.

The previous prime is 54775474733633. The next prime is 54775474733687. The reversal of 54775474733681 is 18633747457745.

It can be written as a sum of positive squares in 8 ways, for example, as 72513872656 + 54702960861025 = 269284^2 + 7396145^2 .

It is not a de Polignac number, because 54775474733681 - 2³⁰ = 54774400991857 is a prime.

It is a super-2 number, since 2×54775474733681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54775474733687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20713361 + ... + 23207633.

It is an arithmetic number, because the mean of its divisors is an integer number (3756492627741).

Almost surely, 2^{54775474733681} is an apocalyptic number.

It is an amenable number.

54775474733681 is a deficient number, since it is larger than the sum of its proper divisors (5328407310175).

54775474733681 is a wasteful number, since it uses less digits than its factorization.

54775474733681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526212.

The product of its digits is 1659571200, while the sum is 71.

The spelling of 54775474733681 in words is "fifty-four trillion, seven hundred seventy-five billion, four hundred seventy-four million, seven hundred thirty-three thousand, six hundred eighty-one".