1326424555 has 4 divisors (see below), whose sum is σ = 1591709472. Its totient is φ = 1061139640.

The previous prime is 1326424549. The next prime is 1326424571. The reversal of 1326424555 is 5554246231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1326424555 - 2¹³ = 1326416363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132642451 + ... + 132642460.

It is an arithmetic number, because the mean of its divisors is an integer number (397927368).

Almost surely, 2^1326424555 is an apocalyptic number.

1326424555 is a deficient number, since it is larger than the sum of its proper divisors (265284917).

1326424555 is an equidigital number, since it uses as much as digits as its factorization.

1326424555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265284916.

The product of its digits is 144000, while the sum is 37.

The square root of 1326424555 is about 36420.1119575435. Note that the first 3 decimals coincide. The cubic root of 1326424555 is about 1098.7380997562.

The spelling of 1326424555 in words is "one billion, three hundred twenty-six million, four hundred twenty-four thousand, five hundred fifty-five".