1155504252 has 48 divisors (see below), whose sum is σ = 3090563840. Its totient is φ = 329156352.

The previous prime is 1155504227. The next prime is 1155504257. The reversal of 1155504252 is 2524055511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155504257) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7899 + ... + 48717.

Almost surely, 2^1155504252 is an apocalyptic number.

1155504252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155504252 is an abundant number, since it is smaller than the sum of its proper divisors (1935059588).

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

1155504252 is a wasteful number, since it uses less digits than its factorization.

1155504252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41170 (or 41168 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1155504252 is about 33992.7088064485. The cubic root of 1155504252 is about 1049.3584143985.

Adding to 1155504252 its reverse (2524055511), we get a palindrome (3679559763).

The spelling of 1155504252 in words is "one billion, one hundred fifty-five million, five hundred four thousand, two hundred fifty-two".