55031988195 has 32 divisors (see below), whose sum is σ = 98026977600. Its totient is φ = 29292694272.

The previous prime is 55031988191. The next prime is 55031988223. The reversal of 55031988195 is 59188913055.

It is a happy number.

55031988195 is a `hidden beast` number, since 550 + 3 + 1 + 9 + 8 + 81 + 9 + 5 = 666.

It is not a de Polignac number, because 55031988195 - 2² = 55031988191 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55031988191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331722 + ... + 469151.

It is an arithmetic number, because the mean of its divisors is an integer number (3063343050).

Almost surely, 2^55031988195 is an apocalyptic number.

55031988195 is a deficient number, since it is larger than the sum of its proper divisors (42994989405).

55031988195 is a wasteful number, since it uses less digits than its factorization.

55031988195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801396 (or 801390 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 54.

The spelling of 55031988195 in words is "fifty-five billion, thirty-one million, nine hundred eighty-eight thousand, one hundred ninety-five".