55025505 has 12 divisors (see below), whose sum is σ = 95377620. Its totient is φ = 29346912.

The previous prime is 55025491. The next prime is 55025521. The reversal of 55025505 is 50552055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42302016 + 12723489 = 6504^2 + 3567^2 .

It is not a de Polignac number, because 55025505 - 2⁸ = 55025249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611350 + ... + 611439.

It is an arithmetic number, because the mean of its divisors is an integer number (7948135).

Almost surely, 2^55025505 is an apocalyptic number.

It is an amenable number.

55025505 is a deficient number, since it is larger than the sum of its proper divisors (40352115).

55025505 is a wasteful number, since it uses less digits than its factorization.

55025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222800 (or 1222797 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 55025505 is about 7417.9178345409. The cubic root of 55025505 is about 380.3540214176.

The spelling of 55025505 in words is "fifty-five million, twenty-five thousand, five hundred five".