54100420251 has 4 divisors (see below), whose sum is σ = 72133893672. Its totient is φ = 36066946832.

The previous prime is 54100420243. The next prime is 54100420267. The reversal of 54100420251 is 15202400145.

54100420251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 54100420251 - 2³ = 54100420243 is a prime.

It is a super-3 number, since 3×54100420251³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (54100421251) 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, 9016736706 + ... + 9016736711.

It is an arithmetic number, because the mean of its divisors is an integer number (18033473418).

Almost surely, 2^54100420251 is an apocalyptic number.

54100420251 is a deficient number, since it is larger than the sum of its proper divisors (18033473421).

54100420251 is a wasteful number, since it uses less digits than its factorization.

54100420251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033473420.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 54100420251 its reverse (15202400145), we get a palindrome (69302820396).

The spelling of 54100420251 in words is "fifty-four billion, one hundred million, four hundred twenty thousand, two hundred fifty-one".