48919021 has 2 divisors, whose sum is σ = 48919022. Its totient is φ = 48919020.

The previous prime is 48919007. The next prime is 48919043. The reversal of 48919021 is 12091984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 72900 = 6989^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 48919021 - 2⁷ = 48918893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48919921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24459510 + 24459511.

It is an arithmetic number, because the mean of its divisors is an integer number (24459511).

Almost surely, 2^48919021 is an apocalyptic number.

It is an amenable number.

48919021 is a deficient number, since it is larger than the sum of its proper divisors (1).

48919021 is an equidigital number, since it uses as much as digits as its factorization.

48919021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 48919021 is about 6994.2133939422. The cubic root of 48919021 is about 365.7288769159.

The spelling of 48919021 in words is "forty-eight million, nine hundred nineteen thousand, twenty-one".