54005121801 has 12 divisors (see below), whose sum is σ = 78811599412. Its totient is φ = 35632244736.

The previous prime is 54005121787. The next prime is 54005121851. The reversal of 54005121801 is 10812150045.

It can be written as a sum of positive squares in 2 ways, for example, as 14285030400 + 39720091401 = 119520^2 + 199299^2 .

It is not a de Polignac number, because 54005121801 - 2¹⁷ = 54004990729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54005121851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30929896 + ... + 30931641.

Almost surely, 2^54005121801 is an apocalyptic number.

It is an amenable number.

54005121801 is a deficient number, since it is larger than the sum of its proper divisors (24806477611).

54005121801 is a wasteful number, since it uses less digits than its factorization.

54005121801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61861640 (or 61861637 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 54005121801 its reverse (10812150045), we get a palindrome (64817271846).

The spelling of 54005121801 in words is "fifty-four billion, five million, one hundred twenty-one thousand, eight hundred one".