1155225455 has 8 divisors (see below), whose sum is σ = 1415765952. Its totient is φ = 904516768.

The previous prime is 1155225437. The next prime is 1155225481. The reversal of 1155225455 is 5545225511.

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 1155225455 - 2¹⁰ = 1155224431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457692 + ... + 2458161.

It is an arithmetic number, because the mean of its divisors is an integer number (176970744).

Almost surely, 2^1155225455 is an apocalyptic number.

1155225455 is a deficient number, since it is larger than the sum of its proper divisors (260540497).

1155225455 is an equidigital number, since it uses as much as digits as its factorization.

1155225455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915905.

The product of its digits is 50000, while the sum is 35.

The square root of 1155225455 is about 33988.6077237653. The cubic root of 1155225455 is about 1049.2740121387.

The spelling of 1155225455 in words is "one billion, one hundred fifty-five million, two hundred twenty-five thousand, four hundred fifty-five".