1088553421 has 2 divisors, whose sum is σ = 1088553422. Its totient is φ = 1088553420.

The previous prime is 1088553359. The next prime is 1088553439. The reversal of 1088553421 is 1243558801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839260900 + 249292521 = 28970^2 + 15789^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088553421 - 2⁷ = 1088553293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088551421) 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, 544276710 + 544276711.

It is an arithmetic number, because the mean of its divisors is an integer number (544276711).

Almost surely, 2^1088553421 is an apocalyptic number.

It is an amenable number.

1088553421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088553421 is an equidigital number, since it uses as much as digits as its factorization.

1088553421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 1088553421 is about 32993.2329576839. The cubic root of 1088553421 is about 1028.6869941093.

The spelling of 1088553421 in words is "one billion, eighty-eight million, five hundred fifty-three thousand, four hundred twenty-one".