48948821 has 2 divisors, whose sum is σ = 48948822. Its totient is φ = 48948820.

The previous prime is 48948799. The next prime is 48948827. The reversal of 48948821 is 12884984.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36168196 + 12780625 = 6014^2 + 3575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48948821 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48948827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24474410 + 24474411.

It is an arithmetic number, because the mean of its divisors is an integer number (24474411).

Almost surely, 2^48948821 is an apocalyptic number.

It is an amenable number.

48948821 is a deficient number, since it is larger than the sum of its proper divisors (1).

48948821 is an equidigital number, since it uses as much as digits as its factorization.

48948821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 44.

The square root of 48948821 is about 6996.3434020923. The cubic root of 48948821 is about 365.8031255279.

The spelling of 48948821 in words is "forty-eight million, nine hundred forty-eight thousand, eight hundred twenty-one".