55585786225 has 6 divisors (see below), whose sum is σ = 68926374950. Its totient is φ = 44468628960.

The previous prime is 55585786141. The next prime is 55585786237. The reversal of 55585786225 is 52268758555.

It can be written as a sum of positive squares in 3 ways, for example, as 59105344 + 55526680881 = 7688^2 + 235641^2 .

It is not a de Polignac number, because 55585786225 - 2³³ = 46995851633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55585786225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111715700 + ... + 1111715749.

Almost surely, 2^55585786225 is an apocalyptic number.

It is an amenable number.

55585786225 is a deficient number, since it is larger than the sum of its proper divisors (13340588725).

55585786225 is a wasteful number, since it uses less digits than its factorization.

55585786225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223431459 (or 2223431454 counting only the distinct ones).

The product of its digits is 33600000, while the sum is 58.

The spelling of 55585786225 in words is "fifty-five billion, five hundred eighty-five million, seven hundred eighty-six thousand, two hundred twenty-five".