54988623409 has 2 divisors, whose sum is σ = 54988623410. Its totient is φ = 54988623408.

The previous prime is 54988623341. The next prime is 54988623451. The reversal of 54988623409 is 90432688945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27640725025 + 27347898384 = 166255^2 + 165372^2 .

It is a cyclic number.

It is not a de Polignac number, because 54988623409 - 2²⁷ = 54854405681 is a prime.

It is not a weakly prime, because it can be changed into another prime (54988623479) 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, 27494311704 + 27494311705.

It is an arithmetic number, because the mean of its divisors is an integer number (27494311705).

Almost surely, 2^54988623409 is an apocalyptic number.

It is an amenable number.

54988623409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54988623409 is an equidigital number, since it uses as much as digits as its factorization.

54988623409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 54988623409 in words is "fifty-four billion, nine hundred eighty-eight million, six hundred twenty-three thousand, four hundred nine".