55225105 has 16 divisors (see below), whose sum is σ = 73672704. Its totient is φ = 39464640.

The previous prime is 55225103. The next prime is 55225109. The reversal of 55225105 is 50152255.

It is a happy number.

It is not a de Polignac number, because 55225105 - 2¹ = 55225103 is a prime.

It is a super-2 number, since 2×55225105² = 6099624444522050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55225105.

It is not an unprimeable number, because it can be changed into a prime (55225103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11689 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (4604544).

Almost surely, 2^55225105 is an apocalyptic number.

It is an amenable number.

55225105 is a deficient number, since it is larger than the sum of its proper divisors (18447599).

55225105 is a wasteful number, since it uses less digits than its factorization.

55225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27456.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55225105 is about 7431.3595660552. The cubic root of 55225105 is about 380.8133662930.

The spelling of 55225105 in words is "fifty-five million, two hundred twenty-five thousand, one hundred five".