48538721 has 16 divisors (see below), whose sum is σ = 62605440. Its totient is φ = 36516480.

The previous prime is 48538697. The next prime is 48538727. The reversal of 48538721 is 12783584.

It is not a de Polignac number, because 48538721 - 2⁶ = 48538657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48538727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8636 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (3912840).

Almost surely, 2^48538721 is an apocalyptic number.

It is an amenable number.

48538721 is a deficient number, since it is larger than the sum of its proper divisors (14066719).

48538721 is a wasteful number, since it uses less digits than its factorization.

48538721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784.

The product of its digits is 53760, while the sum is 38.

The square root of 48538721 is about 6966.9735897303. The cubic root of 48538721 is about 364.7786761070.

The spelling of 48538721 in words is "forty-eight million, five hundred thirty-eight thousand, seven hundred twenty-one".