47255207221 has 4 divisors (see below), whose sum is σ = 49309781472. Its totient is φ = 45200632972.

The previous prime is 47255207203. The next prime is 47255207243. The reversal of 47255207221 is 12270255274.

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 47255207221 - 2⁹ = 47255206709 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 (47255207281) 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, 1027287091 + ... + 1027287136.

It is an arithmetic number, because the mean of its divisors is an integer number (12327445368).

Almost surely, 2^47255207221 is an apocalyptic number.

It is an amenable number.

47255207221 is a deficient number, since it is larger than the sum of its proper divisors (2054574251).

47255207221 is a wasteful number, since it uses less digits than its factorization.

47255207221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054574250.

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 47255207221 in words is "forty-seven billion, two hundred fifty-five million, two hundred seven thousand, two hundred twenty-one".