54637889 has 2 divisors, whose sum is σ = 54637890. Its totient is φ = 54637888.

The previous prime is 54637879. The next prime is 54637967. The reversal of 54637889 is 98873645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 1420864 = 7295^2 + 1192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54637889 is a prime.

It is not a weakly prime, because it can be changed into another prime (54637819) 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, 27318944 + 27318945.

It is an arithmetic number, because the mean of its divisors is an integer number (27318945).

Almost surely, 2^54637889 is an apocalyptic number.

It is an amenable number.

54637889 is a deficient number, since it is larger than the sum of its proper divisors (1).

54637889 is an equidigital number, since it uses as much as digits as its factorization.

54637889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 54637889 is about 7391.7446519749. The cubic root of 54637889 is about 379.4588071659.

The spelling of 54637889 in words is "fifty-four million, six hundred thirty-seven thousand, eight hundred eighty-nine".