49355221 has 4 divisors (see below), whose sum is σ = 49589344. Its totient is φ = 49121100.

The previous prime is 49355219. The next prime is 49355237. The reversal of 49355221 is 12255394.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12255394 = 2 ⋅6127697.

It is a cyclic number.

It is not a de Polignac number, because 49355221 - 2¹ = 49355219 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 (49355281) 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, 116745 + ... + 117166.

It is an arithmetic number, because the mean of its divisors is an integer number (12397336).

Almost surely, 2^49355221 is an apocalyptic number.

It is an amenable number.

49355221 is a deficient number, since it is larger than the sum of its proper divisors (234123).

49355221 is a wasteful number, since it uses less digits than its factorization.

49355221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234122.

The product of its digits is 10800, while the sum is 31.

The square root of 49355221 is about 7025.3271098220. The cubic root of 49355221 is about 366.8127028023.

The spelling of 49355221 in words is "forty-nine million, three hundred fifty-five thousand, two hundred twenty-one".