48619661 has 2 divisors, whose sum is σ = 48619662. Its totient is φ = 48619660.

The previous prime is 48619633. The next prime is 48619663. The reversal of 48619661 is 16691684.

48619661 = 4930² + 4931².

48619661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24314761 + 24304900 = 4931^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 48619661 - 2¹⁰ = 48618637 is a prime.

Together with 48619663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48619663) 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, 24309830 + 24309831.

It is an arithmetic number, because the mean of its divisors is an integer number (24309831).

Almost surely, 2^48619661 is an apocalyptic number.

48619661 is the 4931-st centered square number.

It is an amenable number.

48619661 is a deficient number, since it is larger than the sum of its proper divisors (1).

48619661 is an equidigital number, since it uses as much as digits as its factorization.

48619661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 48619661 is about 6972.7800051343. The cubic root of 48619661 is about 364.9813238708.

The spelling of 48619661 in words is "forty-eight million, six hundred nineteen thousand, six hundred sixty-one".