1151550555 has 8 divisors (see below), whose sum is σ = 1842480912. Its totient is φ = 614160288.

The previous prime is 1151550551. The next prime is 1151550563. The reversal of 1151550555 is 5550551511.

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

It is not a de Polignac number, because 1151550555 - 2² = 1151550551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151550551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38385004 + ... + 38385033.

It is an arithmetic number, because the mean of its divisors is an integer number (230310114).

Almost surely, 2^1151550555 is an apocalyptic number.

1151550555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151550555 is a deficient number, since it is larger than the sum of its proper divisors (690930357).

1151550555 is an equidigital number, since it uses as much as digits as its factorization.

1151550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76770045.

The product of its (nonzero) digits is 15625, while the sum is 33.

The square root of 1151550555 is about 33934.5039008971. The cubic root of 1151550555 is about 1048.1602113491.

The spelling of 1151550555 in words is "one billion, one hundred fifty-one million, five hundred fifty thousand, five hundred fifty-five".