54981551503 has 2 divisors, whose sum is σ = 54981551504. Its totient is φ = 54981551502.

The previous prime is 54981551461. The next prime is 54981551509. The reversal of 54981551503 is 30515518945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54981551503 - 2¹³ = 54981543311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54981551509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27490775751 + 27490775752.

It is an arithmetic number, because the mean of its divisors is an integer number (27490775752).

Almost surely, 2^54981551503 is an apocalyptic number.

54981551503 is a deficient number, since it is larger than the sum of its proper divisors (1).

54981551503 is an equidigital number, since it uses as much as digits as its factorization.

54981551503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 46.

The spelling of 54981551503 in words is "fifty-four billion, nine hundred eighty-one million, five hundred fifty-one thousand, five hundred three".