55105131225 has 48 divisors (see below), whose sum is σ = 92749688640. Its totient is φ = 28860614400.

The previous prime is 55105131199. The next prime is 55105131299. The reversal of 55105131225 is 52213150155.

It is not a de Polignac number, because 55105131225 - 2⁶ = 55105131161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55105131192 and 55105131201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4511827 + ... + 4524023.

It is an arithmetic number, because the mean of its divisors is an integer number (1932285180).

Almost surely, 2^55105131225 is an apocalyptic number.

It is an amenable number.

55105131225 is a deficient number, since it is larger than the sum of its proper divisors (37644557415).

55105131225 is a wasteful number, since it uses less digits than its factorization.

55105131225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13290 (or 13285 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 55105131225 in words is "fifty-five billion, one hundred five million, one hundred thirty-one thousand, two hundred twenty-five".