54929689 has 2 divisors, whose sum is σ = 54929690. Its totient is φ = 54929688.

The previous prime is 54929621. The next prime is 54929711. The reversal of 54929689 is 98692945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47720464 + 7209225 = 6908^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 54929689 - 2¹⁵ = 54896921 is a prime.

It is not a weakly prime, because it can be changed into another prime (54929389) 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, 27464844 + 27464845.

It is an arithmetic number, because the mean of its divisors is an integer number (27464845).

Almost surely, 2^54929689 is an apocalyptic number.

It is an amenable number.

54929689 is a deficient number, since it is larger than the sum of its proper divisors (1).

54929689 is an equidigital number, since it uses as much as digits as its factorization.

54929689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 52.

The square root of 54929689 is about 7411.4566044739. The cubic root of 54929689 is about 380.1331227953.

It can be divided in two parts, 549 and 29689, that multiplied together give a palindrome (16299261).

The spelling of 54929689 in words is "fifty-four million, nine hundred twenty-nine thousand, six hundred eighty-nine".