49471221 has 4 divisors (see below), whose sum is σ = 65961632. Its totient is φ = 32980812.

The previous prime is 49471211. The next prime is 49471243. The reversal of 49471221 is 12217494.

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 not a de Polignac number, because 49471221 - 2⁵ = 49471189 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 (49471211) 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, 8245201 + ... + 8245206.

It is an arithmetic number, because the mean of its divisors is an integer number (16490408).

Almost surely, 2^49471221 is an apocalyptic number.

It is an amenable number.

49471221 is a deficient number, since it is larger than the sum of its proper divisors (16490411).

49471221 is a wasteful number, since it uses less digits than its factorization.

49471221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16490410.

The product of its digits is 4032, while the sum is 30.

The square root of 49471221 is about 7033.5781079050. The cubic root of 49471221 is about 367.0998523054.

The spelling of 49471221 in words is "forty-nine million, four hundred seventy-one thousand, two hundred twenty-one".