1155552655 has 8 divisors (see below), whose sum is σ = 1387168992. Its totient is φ = 924104928.

The previous prime is 1155552649. The next prime is 1155552677. The reversal of 1155552655 is 5562555511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155552655 - 2⁷ = 1155552527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26547 + ... + 54916.

It is an arithmetic number, because the mean of its divisors is an integer number (173396124).

Almost surely, 2^1155552655 is an apocalyptic number.

1155552655 is a deficient number, since it is larger than the sum of its proper divisors (231616337).

1155552655 is an equidigital number, since it uses as much as digits as its factorization.

1155552655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84305.

The product of its digits is 187500, while the sum is 40.

The square root of 1155552655 is about 33993.4207604942. The cubic root of 1155552655 is about 1049.3730664104.

The spelling of 1155552655 in words is "one billion, one hundred fifty-five million, five hundred fifty-two thousand, six hundred fifty-five".