55881010225 has 6 divisors (see below), whose sum is σ = 69292452710. Its totient is φ = 44704808160.

The previous prime is 55881010187. The next prime is 55881010249. The reversal of 55881010225 is 52201018855.

It can be written as a sum of positive squares in 3 ways, for example, as 2538950544 + 53342059681 = 50388^2 + 230959^2 .

It is not a de Polignac number, because 55881010225 - 2⁹ = 55881009713 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117620180 + ... + 1117620229.

Almost surely, 2^55881010225 is an apocalyptic number.

It is an amenable number.

55881010225 is a deficient number, since it is larger than the sum of its proper divisors (13411442485).

55881010225 is a wasteful number, since it uses less digits than its factorization.

55881010225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235240419 (or 2235240414 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 37.

The spelling of 55881010225 in words is "fifty-five billion, eight hundred eighty-one million, ten thousand, two hundred twenty-five".