1327157555 has 4 divisors (see below), whose sum is σ = 1592589072. Its totient is φ = 1061726040.

The previous prime is 1327157549. The next prime is 1327157591. The reversal of 1327157555 is 5557517231.

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

It is not a de Polignac number, because 1327157555 - 2⁴ = 1327157539 is a prime.

It is a super-2 number, since 2×1327157555² = 3522694351587156050, which contains 22 as substring.

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, 132715751 + ... + 132715760.

It is an arithmetic number, because the mean of its divisors is an integer number (398147268).

Almost surely, 2^1327157555 is an apocalyptic number.

1327157555 is a deficient number, since it is larger than the sum of its proper divisors (265431517).

1327157555 is an equidigital number, since it uses as much as digits as its factorization.

1327157555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265431516.

The product of its digits is 183750, while the sum is 41.

The square root of 1327157555 is about 36430.1736888530. The cubic root of 1327157555 is about 1098.9404549564.

The spelling of 1327157555 in words is "one billion, three hundred twenty-seven million, one hundred fifty-seven thousand, five hundred fifty-five".