55131450255 has 64 divisors (see below), whose sum is σ = 112047943680. Its totient is φ = 25195110912.

The previous prime is 55131450223. The next prime is 55131450259. The reversal of 55131450255 is 55205413155.

55131450255 is a `hidden beast` number, since 55 + 131 + 450 + 25 + 5 = 666.

It is not a de Polignac number, because 55131450255 - 2⁵ = 55131450223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55131450259) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3940282 + ... + 3954248.

It is an arithmetic number, because the mean of its divisors is an integer number (1750749120).

Almost surely, 2^55131450255 is an apocalyptic number.

55131450255 is an abundant number, since it is smaller than the sum of its proper divisors (56916493425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55131450255 is a wasteful number, since it uses less digits than its factorization.

55131450255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18165 (or 18159 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 55131450255 in words is "fifty-five billion, one hundred thirty-one million, four hundred fifty thousand, two hundred fifty-five".