54130621 has 2 divisors, whose sum is σ = 54130622. Its totient is φ = 54130620.

The previous prime is 54130597. The next prime is 54130627. The reversal of 54130621 is 12603145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54096025 + 34596 = 7355^2 + 186^2 .

It is a cyclic number.

It is not a de Polignac number, because 54130621 - 2⁷ = 54130493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54130592 and 54130601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54130627) 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 as a sum of consecutive naturals, namely, 27065310 + 27065311.

It is an arithmetic number, because the mean of its divisors is an integer number (27065311).

Almost surely, 2^54130621 is an apocalyptic number.

It is an amenable number.

54130621 is a deficient number, since it is larger than the sum of its proper divisors (1).

54130621 is an equidigital number, since it uses as much as digits as its factorization.

54130621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 54130621 is about 7357.3514935743. The cubic root of 54130621 is about 378.2808328028.

Adding to 54130621 its reverse (12603145), we get a palindrome (66733766).

The spelling of 54130621 in words is "fifty-four million, one hundred thirty thousand, six hundred twenty-one".