55439106 has 16 divisors (see below), whose sum is σ = 111111744. Its totient is φ = 18440784.

The previous prime is 55439101. The next prime is 55439221. The reversal of 55439106 is 60193455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55439101) 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, 6565 + ... + 12408.

It is an arithmetic number, because the mean of its divisors is an integer number (6944484).

Almost surely, 2^55439106 is an apocalyptic number.

55439106 is an abundant number, since it is smaller than the sum of its proper divisors (55672638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55439106 is a wasteful number, since it uses less digits than its factorization.

55439106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19465.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 55439106 is about 7445.7441535417. The cubic root of 55439106 is about 381.3046247629.

The spelling of 55439106 in words is "fifty-five million, four hundred thirty-nine thousand, one hundred six".