1156253355 has 24 divisors (see below), whose sum is σ = 2091312288. Its totient is φ = 589856256.

The previous prime is 1156253321. The next prime is 1156253363. The reversal of 1156253355 is 5533526511.

1156253355 is a `hidden beast` number, since 1 + 1 + 56 + 253 + 355 = 666.

It is not a de Polignac number, because 1156253355 - 2⁸ = 1156253099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557542 + ... + 559611.

It is an arithmetic number, because the mean of its divisors is an integer number (87138012).

Almost surely, 2^1156253355 is an apocalyptic number.

1156253355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1156253355 is a deficient number, since it is larger than the sum of its proper divisors (935058933).

1156253355 is a wasteful number, since it uses less digits than its factorization.

1156253355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117187 (or 1117184 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 1156253355 is about 34003.7256047040. The cubic root of 1156253355 is about 1049.5851286164.

Adding to 1156253355 its reverse (5533526511), we get a palindrome (6689779866).

The spelling of 1156253355 in words is "one billion, one hundred fifty-six million, two hundred fifty-three thousand, three hundred fifty-five".