55133396906 has 16 divisors (see below), whose sum is σ = 96525340416. Its totient is φ = 23125862256.

The previous prime is 55133396897. The next prime is 55133396909. The reversal of 55133396906 is 60969333155.

It is not an unprimeable number, because it can be changed into a prime (55133396909) 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, 41894021 + ... + 41895336.

It is an arithmetic number, because the mean of its divisors is an integer number (6032833776).

Almost surely, 2^55133396906 is an apocalyptic number.

55133396906 is a deficient number, since it is larger than the sum of its proper divisors (41391943510).

55133396906 is a wasteful number, since it uses less digits than its factorization.

55133396906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83789413.

The product of its (nonzero) digits is 1968300, while the sum is 50.

The spelling of 55133396906 in words is "fifty-five billion, one hundred thirty-three million, three hundred ninety-six thousand, nine hundred six".