53991106 has 12 divisors (see below), whose sum is σ = 87696162. Its totient is φ = 24918816.

The previous prime is 53991089. The next prime is 53991121. The reversal of 53991106 is 60119935.

It can be written as a sum of positive squares in 3 ways, for example, as 16475481 + 37515625 = 4059^2 + 6125^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79531 + ... + 80206.

Almost surely, 2^53991106 is an apocalyptic number.

53991106 is a deficient number, since it is larger than the sum of its proper divisors (33705056).

53991106 is a wasteful number, since it uses less digits than its factorization.

53991106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159765 (or 159752 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 53991106 is about 7347.8640433802. The cubic root of 53991106 is about 377.9555624628.

The spelling of 53991106 in words is "fifty-three million, nine hundred ninety-one thousand, one hundred six".