5531121045 has 24 divisors (see below), whose sum is σ = 9942362976. Its totient is φ = 2949930576.

The previous prime is 5531121041. The next prime is 5531121047. The reversal of 5531121045 is 5401211355.

5531121045 is a `hidden beast` number, since 5 + 531 + 121 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 5531121045 - 2² = 5531121041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531121041) 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 23 ways as a sum of consecutive naturals, for example, 2274967 + ... + 2277396.

It is an arithmetic number, because the mean of its divisors is an integer number (414265124).

Almost surely, 2^5531121045 is an apocalyptic number.

It is an amenable number.

5531121045 is a deficient number, since it is larger than the sum of its proper divisors (4411241931).

5531121045 is an equidigital number, since it uses as much as digits as its factorization.

5531121045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552383 (or 4552371 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5531121045 is about 74371.5069431836. The cubic root of 5531121045 is about 1768.4972450410.

The spelling of 5531121045 in words is "five billion, five hundred thirty-one million, one hundred twenty-one thousand, forty-five".