55201906 has 16 divisors (see below), whose sum is σ = 86198400. Its totient is φ = 26481168.

The previous prime is 55201879. The next prime is 55201919. The reversal of 55201906 is 60910255.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6535 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (5387400).

Almost surely, 2^55201906 is an apocalyptic number.

55201906 is a deficient number, since it is larger than the sum of its proper divisors (30996494).

55201906 is a wasteful number, since it uses less digits than its factorization.

55201906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 55201906 is about 7429.7985167836. The cubic root of 55201906 is about 380.7600347110.

The spelling of 55201906 in words is "fifty-five million, two hundred one thousand, nine hundred six".