130550021533 has 4 divisors (see below), whose sum is σ = 130553484988. Its totient is φ = 130546558080.

The previous prime is 130550021521. The next prime is 130550021593. The reversal of 130550021533 is 335120055031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107391877849 + 23158143684 = 327707^2 + 152178^2 .

It is a cyclic number.

It is not a de Polignac number, because 130550021533 - 2²⁵ = 130516467101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130550021593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674558 + ... + 1750783.

It is an arithmetic number, because the mean of its divisors is an integer number (32638371247).

Almost surely, 2^130550021533 is an apocalyptic number.

It is an amenable number.

130550021533 is a deficient number, since it is larger than the sum of its proper divisors (3463455).

130550021533 is an equidigital number, since it uses as much as digits as its factorization.

130550021533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463454.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 130550021533 its reverse (335120055031), we get a palindrome (465670076564).

The spelling of 130550021533 in words is "one hundred thirty billion, five hundred fifty million, twenty-one thousand, five hundred thirty-three".