48305921 has 4 divisors (see below), whose sum is σ = 48378372. Its totient is φ = 48233472.

The previous prime is 48305879. The next prime is 48305927. The reversal of 48305921 is 12950384.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24403600 + 23902321 = 4940^2 + 4889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48305921 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 (48305927) 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, 35216 + ... + 36561.

It is an arithmetic number, because the mean of its divisors is an integer number (12094593).

Almost surely, 2^48305921 is an apocalyptic number.

It is an amenable number.

48305921 is a deficient number, since it is larger than the sum of its proper divisors (72451).

48305921 is an equidigital number, since it uses as much as digits as its factorization.

48305921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72450.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 48305921 is about 6950.2461107503. The cubic root of 48305921 is about 364.1945609832.

The spelling of 48305921 in words is "forty-eight million, three hundred five thousand, nine hundred twenty-one".