54120117451 has 8 divisors (see below), whose sum is σ = 54663008400. Its totient is φ = 53578069920.

The previous prime is 54120117431. The next prime is 54120117473. The reversal of 54120117451 is 15471102145.

It is a happy number.

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 54120117451 - 2²⁵ = 54086563019 is a prime.

It is a super-2 number, since 2×54120117451² (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 (54120117431) 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, 81481 + ... + 338938.

It is an arithmetic number, because the mean of its divisors is an integer number (6832876050).

Almost surely, 2^54120117451 is an apocalyptic number.

54120117451 is a deficient number, since it is larger than the sum of its proper divisors (542890949).

54120117451 is a wasteful number, since it uses less digits than its factorization.

54120117451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421709.

The product of its (nonzero) digits is 5600, while the sum is 31.

Adding to 54120117451 its reverse (15471102145), we get a palindrome (69591219596).

The spelling of 54120117451 in words is "fifty-four billion, one hundred twenty million, one hundred seventeen thousand, four hundred fifty-one".