55530922493 has 2 divisors, whose sum is σ = 55530922494. Its totient is φ = 55530922492.

The previous prime is 55530922457. The next prime is 55530922547. The reversal of 55530922493 is 39422903555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44021494969 + 11509427524 = 209813^2 + 107282^2 .

It is a cyclic number.

It is not a de Polignac number, because 55530922493 - 2¹² = 55530918397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55530922423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765461246 + 27765461247.

It is an arithmetic number, because the mean of its divisors is an integer number (27765461247).

Almost surely, 2^55530922493 is an apocalyptic number.

It is an amenable number.

55530922493 is a deficient number, since it is larger than the sum of its proper divisors (1).

55530922493 is an equidigital number, since it uses as much as digits as its factorization.

55530922493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458000, while the sum is 47.

The spelling of 55530922493 in words is "fifty-five billion, five hundred thirty million, nine hundred twenty-two thousand, four hundred ninety-three".