54651139 has 2 divisors, whose sum is σ = 54651140. Its totient is φ = 54651138.

The previous prime is 54651133. The next prime is 54651143. The reversal of 54651139 is 93115645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54651139 - 2¹⁹ = 54126851 is a prime.

It is not a weakly prime, because it can be changed into another prime (54651133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27325569 + 27325570.

It is an arithmetic number, because the mean of its divisors is an integer number (27325570).

Almost surely, 2^54651139 is an apocalyptic number.

54651139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54651139 is an equidigital number, since it uses as much as digits as its factorization.

54651139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 54651139 is about 7392.6408677820. The cubic root of 54651139 is about 379.4894783291.

The spelling of 54651139 in words is "fifty-four million, six hundred fifty-one thousand, one hundred thirty-nine".