47505550321 has 4 divisors (see below), whose sum is σ = 48310729200. Its totient is φ = 46700371444.

The previous prime is 47505550303. The next prime is 47505550349. The reversal of 47505550321 is 12305550574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47505550321 - 2³⁵ = 13145811953 is a prime.

It is a super-2 number, since 2×47505550321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47505550921) 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, 402589351 + ... + 402589468.

It is an arithmetic number, because the mean of its divisors is an integer number (12077682300).

Almost surely, 2^47505550321 is an apocalyptic number.

It is an amenable number.

47505550321 is a deficient number, since it is larger than the sum of its proper divisors (805178879).

47505550321 is an equidigital number, since it uses as much as digits as its factorization.

47505550321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805178878.

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 47505550321 in words is "forty-seven billion, five hundred five million, five hundred fifty thousand, three hundred twenty-one".