1153155550 has 24 divisors (see below), whose sum is σ = 2150505216. Its totient is φ = 460050240.

The previous prime is 1153155533. The next prime is 1153155569. The reversal of 1153155550 is 555513511.

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 11 ways as a sum of consecutive naturals, for example, 10959 + ... + 49258.

It is an arithmetic number, because the mean of its divisors is an integer number (89604384).

Almost surely, 2^1153155550 is an apocalyptic number.

1153155550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153155550 is a deficient number, since it is larger than the sum of its proper divisors (997349666).

1153155550 is a wasteful number, since it uses less digits than its factorization.

1153155550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60612 (or 60607 counting only the distinct ones).

The product of its (nonzero) digits is 9375, while the sum is 31.

The square root of 1153155550 is about 33958.1440894522. The cubic root of 1153155550 is about 1048.6469495476.

It can be divided in two parts, 11531 and 55550, that added together give a square (67081 = 259²).

The spelling of 1153155550 in words is "one billion, one hundred fifty-three million, one hundred fifty-five thousand, five hundred fifty".