54511400421 has 6 divisors (see below), whose sum is σ = 78738689510. Its totient is φ = 36340933608.

The previous prime is 54511400399. The next prime is 54511400423. The reversal of 54511400421 is 12400411545.

54511400421 is a `hidden beast` number, since 54 + 51 + 140 + 0 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37686456900 + 16824943521 = 194130^2 + 129711^2 .

It is not a de Polignac number, because 54511400421 - 2⁹ = 54511399909 is a prime.

It is a super-3 number, since 3×54511400421³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54511400423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3028411126 + ... + 3028411143.

Almost surely, 2^54511400421 is an apocalyptic number.

It is an amenable number.

54511400421 is a deficient number, since it is larger than the sum of its proper divisors (24227289089).

54511400421 is a wasteful number, since it uses less digits than its factorization.

54511400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056822275 (or 6056822272 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 54511400421 its reverse (12400411545), we get a palindrome (66911811966).

The spelling of 54511400421 in words is "fifty-four billion, five hundred eleven million, four hundred thousand, four hundred twenty-one".