130556550 has 48 divisors (see below), whose sum is σ = 334956240. Its totient is φ = 33613440.

The previous prime is 130556519. The next prime is 130556599. The reversal of 130556550 is 55655031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10657 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (6978255).

Almost surely, 2^130556550 is an apocalyptic number.

130556550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130556550 is an abundant number, since it is smaller than the sum of its proper divisors (204399690).

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

130556550 is a wasteful number, since it uses less digits than its factorization.

130556550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30057 (or 30052 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 130556550 is about 11426.1345169747. The cubic root of 130556550 is about 507.3015879328.

The spelling of 130556550 in words is "one hundred thirty million, five hundred fifty-six thousand, five hundred fifty".