48999221 has 4 divisors (see below), whose sum is σ = 49042944. Its totient is φ = 48955500.

The previous prime is 48999193. The next prime is 48999227. The reversal of 48999221 is 12299984.

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 48999221 - 2¹⁴ = 48982837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48999227) 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, 20135 + ... + 22436.

It is an arithmetic number, because the mean of its divisors is an integer number (12260736).

Almost surely, 2^48999221 is an apocalyptic number.

It is an amenable number.

48999221 is a deficient number, since it is larger than the sum of its proper divisors (43723).

48999221 is a wasteful number, since it uses less digits than its factorization.

48999221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43722.

The product of its digits is 93312, while the sum is 44.

The square root of 48999221 is about 6999.9443569217. The cubic root of 48999221 is about 365.9286318089.

The spelling of 48999221 in words is "forty-eight million, nine hundred ninety-nine thousand, two hundred twenty-one".