1088551421 has 2 divisors, whose sum is σ = 1088551422. Its totient is φ = 1088551420.

The previous prime is 1088551411. The next prime is 1088551423. The reversal of 1088551421 is 1241558801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050667396 + 37884025 = 32414^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088551421 - 2¹⁴ = 1088535037 is a prime.

It is a super-2 number, since 2×1088551421² = 2369888392322238482, which contains 22 as substring.

Together with 1088551423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088551423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544275710 + 544275711.

It is an arithmetic number, because the mean of its divisors is an integer number (544275711).

Almost surely, 2^1088551421 is an apocalyptic number.

It is an amenable number.

1088551421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088551421 is an equidigital number, since it uses as much as digits as its factorization.

1088551421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12800, while the sum is 35.

The square root of 1088551421 is about 32993.2026484244. The cubic root of 1088551421 is about 1028.6863641064.

The spelling of 1088551421 in words is "one billion, eighty-eight million, five hundred fifty-one thousand, four hundred twenty-one".