54629764181 has 4 divisors (see below), whose sum is σ = 56106244332. Its totient is φ = 53153284032.

The previous prime is 54629764171. The next prime is 54629764199. The reversal of 54629764181 is 18146792645.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21901336081 + 32728428100 = 147991^2 + 180910^2 .

It is a cyclic number.

It is not a de Polignac number, because 54629764181 - 2¹⁰ = 54629763157 is a prime.

It is a super-2 number, since 2×54629764181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54629764171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738240020 + ... + 738240093.

It is an arithmetic number, because the mean of its divisors is an integer number (14026561083).

Almost surely, 2^54629764181 is an apocalyptic number.

It is an amenable number.

54629764181 is a deficient number, since it is larger than the sum of its proper divisors (1476480151).

54629764181 is a wasteful number, since it uses less digits than its factorization.

54629764181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476480150.

The product of its digits is 2903040, while the sum is 53.

The spelling of 54629764181 in words is "fifty-four billion, six hundred twenty-nine million, seven hundred sixty-four thousand, one hundred eighty-one".