48285721 has 4 divisors (see below), whose sum is σ = 52675344. Its totient is φ = 43896100.

The previous prime is 48285719. The next prime is 48285739. The reversal of 48285721 is 12758284.

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 48285721 - 2¹ = 48285719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48285791) 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, 2194795 + ... + 2194816.

It is an arithmetic number, because the mean of its divisors is an integer number (13168836).

Almost surely, 2^48285721 is an apocalyptic number.

It is an amenable number.

48285721 is a deficient number, since it is larger than the sum of its proper divisors (4389623).

48285721 is a wasteful number, since it uses less digits than its factorization.

48285721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389622.

The product of its digits is 35840, while the sum is 37.

The square root of 48285721 is about 6948.7927728491. The cubic root of 48285721 is about 364.1437890442.

The spelling of 48285721 in words is "forty-eight million, two hundred eighty-five thousand, seven hundred twenty-one".