54558761 has 2 divisors, whose sum is σ = 54558762. Its totient is φ = 54558760.

The previous prime is 54558731. The next prime is 54558799. The reversal of 54558761 is 16785545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28955161 + 25603600 = 5381^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 54558761 - 2¹⁴ = 54542377 is a prime.

It is not a weakly prime, because it can be changed into another prime (54558731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27279380 + 27279381.

It is an arithmetic number, because the mean of its divisors is an integer number (27279381).

Almost surely, 2^54558761 is an apocalyptic number.

It is an amenable number.

54558761 is a deficient number, since it is larger than the sum of its proper divisors (1).

54558761 is an equidigital number, since it uses as much as digits as its factorization.

54558761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 41.

The square root of 54558761 is about 7386.3902550569. The cubic root of 54558761 is about 379.2755379887.

The spelling of 54558761 in words is "fifty-four million, five hundred fifty-eight thousand, seven hundred sixty-one".