1135550551 has 8 divisors (see below), whose sum is σ = 1152568944. Its totient is φ = 1118571840.

The previous prime is 1135550543. The next prime is 1135550557. The reversal of 1135550551 is 1550555311.

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

It is a cyclic number.

It is not a de Polignac number, because 1135550551 - 2³ = 1135550543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135550557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50460 + ... + 69406.

It is an arithmetic number, because the mean of its divisors is an integer number (144071118).

Almost surely, 2^1135550551 is an apocalyptic number.

1135550551 is a deficient number, since it is larger than the sum of its proper divisors (17018393).

1135550551 is an equidigital number, since it uses as much as digits as its factorization.

1135550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19841.

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

The square root of 1135550551 is about 33697.9309602237. The cubic root of 1135550551 is about 1043.2830641830.

The spelling of 1135550551 in words is "one billion, one hundred thirty-five million, five hundred fifty thousand, five hundred fifty-one".