48961621 has 2 divisors, whose sum is σ = 48961622. Its totient is φ = 48961620.

The previous prime is 48961607. The next prime is 48961637. The reversal of 48961621 is 12616984.

It is a happy number.

48961621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48790225 + 171396 = 6985^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 48961621 - 2⁹ = 48961109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48961021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24480810 + 24480811.

It is an arithmetic number, because the mean of its divisors is an integer number (24480811).

Almost surely, 2^48961621 is an apocalyptic number.

It is an amenable number.

48961621 is a deficient number, since it is larger than the sum of its proper divisors (1).

48961621 is an equidigital number, since it uses as much as digits as its factorization.

48961621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 48961621 is about 6997.2581058583. The cubic root of 48961621 is about 365.8350082974.

The spelling of 48961621 in words is "forty-eight million, nine hundred sixty-one thousand, six hundred twenty-one".