55575250830 has 48 divisors (see below), whose sum is σ = 157631623344. Its totient is φ = 13472787840.

The previous prime is 55575250813. The next prime is 55575250831. The reversal of 55575250830 is 3805257555.

55575250830 is a `hidden beast` number, since 55 + 575 + 25 + 0 + 8 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55575250831) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28067319 + ... + 28069298.

It is an arithmetic number, because the mean of its divisors is an integer number (3283992153).

Almost surely, 2^55575250830 is an apocalyptic number.

55575250830 is an abundant number, since it is smaller than the sum of its proper divisors (102056372514).

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

55575250830 is a wasteful number, since it uses less digits than its factorization.

55575250830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56136641 (or 56136638 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 45.

The spelling of 55575250830 in words is "fifty-five billion, five hundred seventy-five million, two hundred fifty thousand, eight hundred thirty".