48912221 has 8 divisors (see below), whose sum is σ = 50201088. Its totient is φ = 47628000.

The previous prime is 48912209. The next prime is 48912229. The reversal of 48912221 is 12221984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48912221 - 2²² = 44717917 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 (48912229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32516 + ... + 33986.

It is an arithmetic number, because the mean of its divisors is an integer number (6275136).

Almost surely, 2^48912221 is an apocalyptic number.

48912221 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

48912221 is a deficient number, since it is larger than the sum of its proper divisors (1288867).

48912221 is a wasteful number, since it uses less digits than its factorization.

48912221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its digits is 2304, while the sum is 29.

The square root of 48912221 is about 6993.7272609103. The cubic root of 48912221 is about 365.7119300545.

The spelling of 48912221 in words is "forty-eight million, nine hundred twelve thousand, two hundred twenty-one".