1152218550 has 48 divisors (see below), whose sum is σ = 3265719552. Its totient is φ = 263364000.

The previous prime is 1152218527. The next prime is 1152218567. The reversal of 1152218550 is 558122511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547626 + ... + 549725.

It is an arithmetic number, because the mean of its divisors is an integer number (68035824).

Almost surely, 2^1152218550 is an apocalyptic number.

1152218550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1152218550 is an abundant number, since it is smaller than the sum of its proper divisors (2113501002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1152218550 is a wasteful number, since it uses less digits than its factorization.

1152218550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097373 (or 1097368 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 30.

The square root of 1152218550 is about 33944.3448898340. The cubic root of 1152218550 is about 1048.3628455094.

The spelling of 1152218550 in words is "one billion, one hundred fifty-two million, two hundred eighteen thousand, five hundred fifty".