54111235621651 has 8 divisors (see below), whose sum is σ = 58789334278080. Its totient is φ = 49506807810432.

The previous prime is 54111235621637. The next prime is 54111235621693. The reversal of 54111235621651 is 15612653211145.

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 54111235621651 - 2¹⁹ = 54111235097363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54111235621598 and 54111235621607.

It is not an unprimeable number, because it can be changed into a prime (54111235621151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18417709771 + ... + 18417712708.

It is an arithmetic number, because the mean of its divisors is an integer number (7348666784760).

Almost surely, 2^{54111235621651} is an apocalyptic number.

54111235621651 is a deficient number, since it is larger than the sum of its proper divisors (4678098656429).

54111235621651 is a wasteful number, since it uses less digits than its factorization.

54111235621651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36835422605.

The product of its digits is 216000, while the sum is 43.

Adding to 54111235621651 its reverse (15612653211145), we get a palindrome (69723888832796).

The spelling of 54111235621651 in words is "fifty-four trillion, one hundred eleven billion, two hundred thirty-five million, six hundred twenty-one thousand, six hundred fifty-one".